Medical tube variable diameter tubing technology
FEATURES
Mold Description
Product Materials:
PEEK PTFE PFA
Mold Material:
S136ESR
Number of Cavities:
1
Glue Feeding Method:
Hot runner
Cooling Method:
Water cooling
Molding Cycle
2.5s
EXCLUSIVE: Ansix Tech Pioneers Variable Diameter Medical Tubing Technology — Redefining Precision, Cost, and Delivery in a $14 Billion Market
By Industry News Desk | April 26, 2026
As the global medical tubing market accelerates toward an estimated $23.49 billion by 2029, driven by a compound annual growth rate (CAGR) of 13.6%, one name is emerging as a decisive force in one of the sector‘s most technically demanding frontiers: variable diameter tubing technology. While the overall medical tubing market surged from $12.92 billion in 2024 to an estimated $14.12 billion in 2025, the segment requiring precision-engineered, variable-diameter solutions for catheters, endoscopes, introducers, and minimally invasive surgical devices has become a critical battlefield for innovation.
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Aging populations, rising prevalence of chronic diseases, and the explosive growth of minimally invasive procedures are intensifying demand for tubing that can navigate complex anatomies while maintaining structural integrity, fluid delivery precision, and—above all—patient safety. But as device complexity escalates, so do the engineering challenges: achieving wall thickness uniformity across varying diameters, managing asymmetric cooling without warpage, preventing kinking at transition zones, and maintaining sub-50-micron tolerances across millions of production cycles.
At the forefront of solving these challenges stands Ansix Tech, a global leader in precision molding and medical tubing manufacturing with over 28 years of operational experience. Headquartered in Hong Kong since 1998, the company has grown into a vertically integrated manufacturing powerhouse spanning four production facilities across China and Vietnam—with more than 200 engineers and designers among a workforce exceeding 1,200, operating 260 injection molding machines ranging from 30 to 2,800 tons.
But Ansix Tech is not merely scaling production. The company is systematically dismantling the traditional trade-offs that have long plagued variable diameter medical tubing projects—where achieving exceptional quality required exorbitant cost, where precision demanded extended lead times, and where design complexity risked manufacturing instability.
Technology Benefit
Mold Flow Analysis Eliminate air traps, weld lines
Advanced Cooling Design Reduce cycle times 50–70%
High-Performance Steel (P20 / 420) Mirror-polish surfaces, 1M+ cycles
Reciprocating Extrusion Heads One run replaces multiple assembly ops
Strategic toolkit that turns fixed-diameter production into agile variable-diameter capability.
Cost Driver Ansix Tech Solution Estimated Reduction
Over-engineered materials Best-fit polymer selection (PC, PSU, TPU) 15–30%
Multi-step assembly DFM consolidation Up to 50% of operational steps
Long cooling cycles Turbulent-water cooling systems 20–35% cycle time
Mold change/retooling Quick-change die systems Minutes vs. hours
Scrap and rework Real-time SPC / Cpk ≥ 1.33 control Scrap rates slashed
How Ansix Tech transforms cost structure without compromising medical-grade compliance.
I. Project Initiation & Manufacturing-Driven Design (DFM): From Concept to Production-Ready Blueprint
For most medical device OEMs, the gap between concept sketch and production-ready catheter is where projects stall—or fail entirely. Tolerance drift, material incompatibility, unexpected shrinkage, and costly mold rework have traditionally consumed precious development budgets and delayed market entry.
Ansix Tech has inverted this paradigm. The company’s journey for any variable diameter tubing program begins not on the production floor, but in the digital domain—with a rigorous, collaborative Design for Manufacturability (DFM) analysis.
When a client brings a new variable diameter tube concept to Ansix Tech—whether for a neurovascular catheter requiring ultra-soft distal segments transitioning to pushable proximal shafts, or a steerable introducer sheath with multi-durometer zones—the company’s engineering team of over 200 specialists conducts a deep functional and regulatory analysis. Every design aspect is scrutinized: wall thickness uniformity across diameter transition zones, internal lumen geometries, bend radius requirements, and connector interfaces.
At the core of this digital validation is advanced Mold Flow Analysis (MFA). Using sophisticated simulation software, Ansix Tech engineers create a digital twin of both the mold and the injection/extrusion process. This virtual environment predicts exactly how medical-grade polymer melts will fill the mold cavity, identifying potential defects before any steel is cut or polymer melted—air traps, weld lines, unbalanced cooling zones, and areas of residual stress that could compromise tube flexibility or dimensional precision.
“Our virtual prototyping approach reduces project risk dramatically and shortens development timelines,” explains an Ansix Tech senior process engineer. “By optimizing gate locations and fill patterns digitally, we prevent the costly trial-and-error cycles that have traditionally plagued variable diameter tubing programs.”
For variable diameter applications, where material flow behavior shifts dramatically between thick and thin sections, this simulation capability is mission-critical. The DFM process typically identifies 20–30% of potential manufacturing risks before physical production begins—risks that, if unaddressed, would otherwise drive significant cost overruns and schedule delays.
But Ansix Tech takes DFM one step further. The team proactively simplifies assembly processes—reducing component counts, replacing separate connectors with snap-fit designs, and eliminating secondary bonding operations. In many projects, this approach has reduced assembly time by up to 50% , delivering immediate savings that compound across millions of finished units.
II. Material Science Leadership: Selecting the Right Polymer for Variable Diameter Performance
One of the most underestimated variables in medical tubing manufacturing is the raw material itself. The choice between PVC, thermoplastic polyurethane (TPU), polyether block amides (PEBA/Pebax®), polycarbonate (PC), polysulfone (PSU), or high-performance thermoplastics like PEEK fundamentally determines everything from processability and biocompatibility to sterilization compatibility and long-term device performance.
The global medical tubing materials landscape is evolving rapidly. PVC occupies approximately 28% of the medical plastics market due to its low cost and excellent processability, but concerns over plasticizer migration have driven OEMs toward alternative material systems. Thermoplastic elastomers (TPEs), including Pebax® (polyether block amides), TPUs, and copolyesters, combine elastomeric properties with thermoplastic processability—making them ideal for softer, more flexible catheter segments that must transition between diameters without kinking. High-performance polymers like PEEK, PSU, and PEI serve demanding cardiovascular and implantable applications requiring exceptional strength and temperature resistance.
Ansix Tech has built its reputation as a material-neutral advisor, not a captive processor pushing any particular resin family. The company guides clients through a rigorous selection process that balances mechanical requirements, chemical compatibility, sterilization needs, and cost—without over-engineering the solution.
For rigid, dimensionally stable tubing applications—such as diagnostic instruments and fluidic connectors—Ansix Tech typically selects Polycarbonate (PC) or Polysulfone (PSU) . Their amorphous structure provides excellent dimensional stability and optical clarity, critical for visualization during procedures.
For flexible, kink-resistant medical tubing—the heart of most variable diameter catheter applications—Thermoplastic Polyurethanes (TPUs) and silicone-based TPEs are preferred for their biocompatibility, elasticity, and soft touch. Meanwhile, medical-grade Pebax® offers exceptional low-temperature impact resistance and controllable flexibility across a wide durometer range, with specialized grades meeting ISO 10993 and USP Class VI biocompatibility standards.
Ansix Tech’s expertise extends to material optimization for cost reduction. The engineering team is equally skilled at recommending high-performance resins when clinical demands require them—and at identifying lower-cost alternatives when over-engineering would needlessly inflate device costs.
For the mold itself—the tool that will shape millions of variable diameter tubes—Ansix Tech selects pre-hardened steels such as P20 or corrosion-resistant alloys like 420 stainless steel. These materials withstand millions of cycles, resist wear from abrasive polymers, and can be polished to mirror finishes—essential for particle-free, cleanable medical surfaces.
III. Mold Engineering: The Heart of Variable Diameter Production
If material selection is the “what,” mold engineering is the “how”—and for variable diameter medical tubing, the “how” is exceptionally demanding. Ansix Tech has dedicated substantial R&D resources to mastering the unique challenges of tubing mold design.
A. Critical Design Elements
Runner System Engineering: The runner system is precisely engineered to deliver molten polymer to the cavity with minimal pressure drop and shear heating—two factors that can degrade material properties and introduce flow-induced defects.
Cooling Channel Optimization: Research shows that between 50% and 70% of an injection molding cycle is spent cooling—which means cooling efficiency is the single most influential factor in cycle time reduction and production cost. Ansix Tech designs cooling channels to maintain turbulent water flow, verified by flowmeter data, ensuring maximum heat extraction efficiency from the first shot.
Ejection System Design: For thin-walled variable diameter tubes, the ejection system must apply uniform force across the part surface without causing deformation, drag marks, or damage to delicate diameter transition zones. Ansix Tech engineers carefully balance ejector pin placement, stroke length, and force distribution to achieve clean, non-marring ejection shot after shot.
For variable diameter extrusion dies—where the tool must accommodate continuous diameter changes within a single extrusion run—the challenges multiply. Traditional fixed-caliber dies require mold changes for different diameters, a process consuming 10–15 minutes per change, requiring heating ring removal, and introducing operator safety risks. Ansix Tech has invested in variable-diameter die systems that enable real-time diameter adjustment without production interruptions—a critical enabler for cost-efficient, high-mix manufacturing.
Simulation validation has become Ansix Tech‘s competitive weapon. Using VEL (Virtual Extrusion Laboratory) and other advanced simulation platforms, the company anticipates issues before tooling is cut, running “what-if” scenarios to size extruders and design associated dies—eliminating the costly “trial and error” approach that has historically plagued extrusion projects.
B. Manufacturing Complexity
The actual machining of variable diameter tubing molds pushes the limits of precision manufacturing. Ansix Tech’s tool shops employ five-axis CNC machining, wire EDM, and sinker EDM to achieve surface finishes below Ra 0.4 microns and geometric tolerances measured in single-digit microns.
Core pin manufacturing—the mold component that defines the tube‘s inner diameter—is particularly demanding. For variable diameter applications requiring multiple inner diameter zones along a single tube length, Ansix Tech utilizes stepped or tapered core pins machined to tolerances within ±0.005 mm, ensuring smooth transitions and consistent wall thickness across the entire tube profile.
The mold processing workflow follows a disciplined sequence: rough machining → heat treatment → finish machining → wire EDM (for complex features) → surface finishing (polishing/texturing) → assembly → static and dynamic validation. Each step includes intermediate quality checks, with critical dimensions verified on coordinate measuring machines (CMMs).
One often-overlooked manufacturing challenge is mold steel selection for variable diameter applications. While P20 pre-hardened steel (approximately 30–36 HRC) offers excellent machinability and sufficient wear resistance for medium-volume production, high-volume medical tubing programs demand harder, more wear-resistant materials. Ansix Tech specifies H13 tool steel (46–52 HRC after heat treatment) or stainless steel grades such as 420 and 136 for applications requiring corrosion resistance, cleanability, and mirror-polished surfaces. These materials extend mold life beyond 1 million cycles while maintaining critical diameter tolerances—a non-negotiable requirement for Class II and Class III medical devices.
IV. Extrusion Processing: Mastering the Variable Diameter Challenge
While injection molding serves discrete tubing connectors and components, extrusion is the primary manufacturing process for continuous variable diameter medical tubing. The physics of extrusion—melting polymer pellets, forcing the melt through an annular die, cooling the extrudate, and pulling it through sizing equipment—becomes exponentially more complex when the target diameter must vary along the tube length.
A. Key Extrusion Challenges
External documentation confirms the difficulty of variable diameter extrusion. Traditional fixed-caliber extrusion dies require complete tooling changes when moving between diameter specifications—a process that is time-consuming, energy-intensive, and fraught with quality risk. Ansix Tech has responded by developing quick-change die systems and investing in reciprocating extrusion head technology, an innovation that replaces traditional tip-and-die assemblies with a linear reciprocating assembly capable of changing tube profiles within a single extrusion run.
The benefits of reciprocating head technology are profound: only one extrusion run produces the finished product, eliminating multiple runs with tooling changes and manual assembly operations that would otherwise connect different tube sections. The reciprocating head eliminates entire assembly operations, removes in-process inventory requirements, and enables just-in-time production.
B. Process Optimization for Efficiency and Cost Control
Ansix Tech has systematized extrusion optimization around four core parameters:
Temperature Control: Different polymer families require distinctly different extrusion temperature profiles. For Pebax® extrusion, for example, barrel temperatures are typically maintained between 180–240°C depending on grade, with die temperatures held between 60–80°C. Degradation thresholds vary dramatically by material—Pebax® becomes prone to oxidation above 260°C, while PEEK can process at 350–400°C. Ansix Tech maintains material-specific process windows verified by thermal analysis and documented in standardized work instructions.
Extrusion Speed Matching: The relationship between extruder screw speed (commonly 20–50 rpm) and downstream traction speed must be precisely balanced to maintain diameter stability. Mismatched speeds create either melt draw-down (thinning) or material accumulation (thickening), both fatal to diameter consistency. Ansix Tech uses closed-loop speed control systems that automatically adjust traction speed based on real-time diameter measurements.
Cooling System Engineering: Extruded tube billets must be rapidly cooled to prevent deformation and lock in dimensions. For medical-grade extrusion, Ansix Tech employs vacuum sizing tanks with water temperatures controlled between 15–25°C to ensure smooth, dimensionally stable tube surfaces. Cooling water temperature variations as small as 5°C can alter crystallization rates in semi-crystalline polymers, shifting wall thickness and diameter by measurable margins—which is why Ansix Tech monitors and records cooling water parameters continuously.
Post-Extrusion Processing: Depending on application requirements, extruded tubing may undergo annealing (heat treatment to relieve internal stresses and enhance bend resistance), plasma surface treatment (to improve biocompatibility or lubricity), or precision cutting with laser or specialized blade systems. For variable diameter applications, cutting must maintain perpendicularity within ±0.5°—a specification that requires dedicated fixturing and verified cut quality procedures.
V. Quality Validation: From IQ/OQ/PQ to Cpk ≥ 1.33
For medical device OEMs, process validation is not optional—it‘s a regulatory mandate. FDA 21 CFR Part 820.75(a) stipulates that if process results cannot be fully verified during routine production by inspection and testing, the process must be validated according to established procedures.
Ansix Tech has built its quality system around the three Qs—IQ (Installation Qualification), OQ (Operation Qualification), and PQ (Performance Qualification) —the industry-standard validation framework for regulated medical device manufacturing.
IQ (Installation Qualification): Every equipment installation is verified against documented specifications. This includes confirming electrical power compatibility, extruder screw speed response accuracy, oven temperature distribution (proven with multiple thermocouple placements across heating zones), and calibration status of all measurement instruments.
OQ (Operation Qualification): The team verifies that installed equipment operates properly across defined process windows. Engineering studies identify upper and lower process limits for critical parameters—temperature, pressure, screw speed, puller speed, cooling rate—and challenge the process at these extremes to ensure robust performance.
PQ (Performance Qualification): Multiple production runs demonstrate that the process consistently produces parts meeting all specification requirements when operating within the qualified window.
The quantitative validation target is clear: Cpk ≥ 1.33 on all critical dimensional attributes. At Cpk ≥ 1.33, the process delivers 99.994% of product within specification—a Six Sigma-equivalent performance level. This statistical work is typically performed on a minimum of 30 samples, with Cpk calculated from this dataset.
In-process quality control is enabled by real-time monitoring systems. Ansix Tech employs laser micrometers for continuous outer diameter measurement (typical tolerance: ±0.03 mm), ultrasonic wall thickness gauging, and automated visual inspection systems for surface defect detection. Online gauging data feeds directly into Statistical Process Control (SPC) systems, enabling real-time process adjustment before non-conforming product is produced.
Cleanroom manufacturing is equally paramount. Medical pipe extrusion equipment must achieve dimensional tolerance standards with Cpk ≥ 1.33 across a validated process window, with every machine component inside the cleanroom designed with cleanable surfaces, sealed enclosures, and particle-minimizing construction. Ansix Tech operates ISO Class 8 (Class 100,000) cleanrooms as baseline for most medical tubing operations, with ISO Class 7 maintained for components that contact sterile tissue without terminal sterilization.
Full material traceability is enforced from resin receipt through finished product shipment. Each batch of raw material—whether PVC, TPU, Pebax®, PC, or PSU—is verified against material certifications, including ISO 10993 biocompatibility test reports (cytotoxicity, sensitization, irritation). For hygroscopic materials like Pebax®, drying protocols mandate vacuum drying at 80–100°C for 4–6 hours, reducing moisture content below 0.05% to prevent bubbles or silver streaks during extrusion.
Final testing is comprehensive:
Dimensional inspection (OD, ID, wall thickness) on sampling rates ≥5%
Leak testing at 1.2× rated working pressure for 1 minute minimum
Biocompatibility testing per ISO 10993
Functional tests simulating clinical applications—guidewire push smoothness, kink resistance, pressure resistance
Surface roughness verification (Ra ≤0.8 μm for fluid-contact surfaces)
Sterilization validation as applicable (EtO, gamma, or moist heat)
VI. Cost Engineering: Delivering Value Without Compromising Quality
In medical device manufacturing, cost reduction is typically framed as a zero-sum game: lower cost implies lower quality. Ansix Tech has rejected this premise entirely. The company has systematically identified and eliminated waste across the entire manufacturing value chain, generating hard cost savings for clients while simultaneously improving quality and reliability.
A. Material Cost Optimization
The most direct cost lever is material selection. Ansix Tech‘s material-agnostic advisory approach means the team recommends the lowest-cost polymer that meets all performance, regulatory, and sterilization requirements—not the most expensive grade “just to be safe.” For variable diameter tubing, this often means selecting PVC or polyolefin grades for non-critical, short-term applications, reserving TPU, Pebax®, and silicone only where flexibility, biostability, or specific mechanical properties demand them.
For applications requiring radiopacity (visibility under fluoroscopy), Ansix Tech incorporates barium sulfate (BaSO₄) or other radiopaque fillers at the minimum concentration required for clinical visibility—typically 20–40% by weight, depending on polymer base and wall thickness. Precise loading optimization reduces material cost while maintaining regulatory compliance.
B. Process Efficiency Optimization
Cooling cycle reduction delivers some of the most dramatic cost improvements. Given that 50–70% of the injection molding cycle is cooling time, reducing cooling time by 20–35% through optimized channel design and turbulent water flow directly translates to equivalent percentage increases in throughput—and proportional decreases in per-part cost.
Reciprocating extrusions heads have proven transformative for variable diameter tubing programs. By enabling production of diameter-varying tubes in a single extrusion run—rather than multiple runs requiring tooling changes and manual assembly—the technology eliminates an entire assembly operation, removes in-process inventory, and enables just-in-time production.
Scrap rate reduction through SPC-driven process control and real-time gauging ensures that the first piece is good, the millionth piece is identical, and everything in between meets specification. Each percentage point reduction in scrap directly reduces cost of goods sold.
Secondary operation elimination through DFM-driven design simplification—reducing assembly steps, replacing separate connectors with integrated designs, and avoiding post-molding bonding or welding—delivers compounded savings across production volume.
C. Supply Chain and Logistics Optimization
Ansix Tech‘s multi-facility footprint across China and Vietnam provides geographic flexibility, risk mitigation, and logistics cost optimization. Supply chain simplification—reducing freight costs, tariff exposure, and lead time variation—is incorporated into every project quotation.
The company has achieved logistics-related cost reductions and supply chain risk reduction, with documented lead time reductions significantly shortening customer delivery windows. By consolidating multiple process steps under one roof—from prototyping through high-volume production and subassembly—Ansix Tech eliminates supplier qualification overhead, reduces transportation damage risk, and streamlines purchase-order management.
D. Economic Impact Quantification
While specific savings vary by program complexity and volume, Ansix Tech‘s documented cost-reduction outcomes include:
Material cost reduction: 15–30% through optimal material specification
Cycle time reduction: 20–35% through optimized cooling and process tuning
Assembly cost reduction: Up to 50% through DFM-driven design simplification
Scrap reduction: Typical scrap rates driven below 2% through SPC and real-time gauging
Lead time reduction: Weeks or months compressed through virtual prototyping and parallel process development
VII. Capacity, Lead Time, and Delivery: Scaling Without Compromise
Medical device OEMs require suppliers who can scale production seamlessly from pilot runs to millions of units annually—without quality drift or delivery delays. Ansix Tech‘s manufacturing infrastructure has been purpose-built for this reality.
The company’s four production facilities across China and Vietnam encompass 200,000 square meters of manufacturing space, housing 260 injection molding machines ranging from 30 to 2,800 tons. This scalable capacity enables Ansix Tech to accommodate programs of any size—from tens of thousands of units for specialized surgical devices to tens of millions of units for high-volume disposables.
The engineering workforce—over 200 designers and engineers—ensures that scale never compromises precision. Dedicated project management teams coordinate across mold design, material procurement, process engineering, production scheduling, quality assurance, and logistics, maintaining tight communication loops with client stakeholders.
Lead time compression is built into the Ansix Tech operating model. Virtual DFM and simulation validation drastically reduce the iterative physical trial cycles that historically consumed development months. Rapid prototyping via prototype molds or additive manufacturing enables form-fit-function testing within days rather than weeks. Parallel process development—mold manufacturing proceeding concurrently with process parameter development—further compresses time-to-production.
For high-volume commitments, Ansix Tech maintains strategic resin inventories of common medical grades, negotiates long-term supply agreements with resin suppliers (including licensed medical-grade PVC, TPU, Pebax®, PC, and PSU from major producers), and operates redundant production lines to mitigate single-point-of-failure risks.
Certification infrastructure ensures regulatory alignment across all production scales. Ansix Tech holds ISO 9001 (quality management), ISO 14001 (environmental management), ISO 13485 (medical device manufacturing), and IATF 16949 (automotive, applicable for certain medical device components). For Class II and Class III device components, the company maintains full regulatory documentation packages including raw material certifications, in-process inspection records, final test reports, and sterilization validation documentation—everything required for FDA submissions and EU MDR technical files.
VIII. The Ansix Tech Value Proposition: Beyond Components to Engineering Partnership
What distinguishes Ansix Tech from conventional medical tubing suppliers is not any single capability, but the systematic integration of capabilities across the entire value chain. The company positions itself not as a component vendor, but as an engineering partner fully accountable for manufacturability, quality, cost, and delivery.
Client Need Ansix Tech Solution
Concept-to-production gap Virtual DFM + mold flow analysis + rapid prototyping
Material selection uncertainty Material-neutral advisory + polymer science expertise
Variable diameter quality risk Advanced cooling systems + real-time SPC + IQ/OQ/PQ validation
Production cost pressure Multi-lever cost engineering (material + process + assembly)
Scale-up reliability 260 machines across 4 facilities + ISO 13485 certified
Regulatory submission support Full traceability + validation packages + biocompatibility documentation
Supply chain disruption risk Multi-region footprint + strategic resin inventories + redundant lines
For clients launching new variable diameter catheter platforms—whether for cardiovascular intervention, neurovascular access, urology, or gastroenterology—Ansix Tech offers a clear path from concept to market with predictable quality, cost, and schedule.
IX. Outlook: Variable Diameter Tubing as a Strategic Imperative
As the medical device industry pushes deeper into minimally invasive surgery, robotic-assisted intervention, and targeted drug delivery, the demand for variable diameter tubing will accelerate. Devices requiring distal flexibility for navigation combined with proximal pushability for torque transmission cannot be manufactured with fixed-diameter extrusions alone.
Emerging trends will further elevate variable diameter technology‘s strategic importance:
Neurology and brain monitoring applications requiring ultra-thin, multi-lumen variable diameter catheters capable of navigating cerebral vasculature.
Precision medicine driving patient-specific tubing geometries tailored to individual anatomy.
Biodegradable materials introducing new processing challenges for variable diameter extrusion.
Smart tubing integrating sensors, conductive elements, or drug-eluting coatings—all embedded in variable-diameter structures.
Ansix Tech is already investing in next-generation capabilities: enhanced simulation platforms for multi-component co-extrusion, automated optical inspection systems for 100% in-line defect detection, and advanced cleanroom automation for particle-controlled assembly of finished catheter subassemblies.
Conclusion
In an industry where microns matter and failures are not tolerated, Ansix Tech has established itself as the partner of choice for medical device OEMs seeking to commercialize variable diameter tubing technology. With 28 years of precision molding expertise, four strategically located manufacturing facilities, over 200 engineers dedicated to DFM and process optimization, and a quality management system validated to ISO 13485 standards, the company delivers what the market demands: micro-precision, manufacturing scalability, regulatory readiness, and demonstrable cost reduction.
For OEMs evaluating their next catheter or medical tubing program, the question is no longer whether variable diameter capability is required—but which partner can deliver it reliably, cost-effectively, and at scale. Ansix Tech has already answered that question.
For more information about Ansix Tech‘s variable diameter medical tubing capabilities, including material selection guidance, DFM consultation, or production quoting, contact the company‘s engineering team or visit www.ansixtech.com.
Ansix Tech Co Ltd
If you have any plans related to Medical tube variable diameter tubing technology , you can contact us at any time. We will turn your ideas into reality, let you realize your dreams, and obtain large orders from the market. Our contact information is info@ansixtech.com. Or contact our CTO, mail: stephen@ansixtech.com
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