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ISO Certified High Output Bimetallic Parallel Twin Screw Barrel for PVC Sheet. ISO Certified Quality: 99.8% qualification rate with zero-defect protocols and German-imported QC systems. Bimetallic Durability: Extended lifespan with nitriding and hard chrome plating for wear and corrosion resistance. Engineering Customization: OEM/ODM accepted with customizable compression ratios, L/D ratios, and flight depths. Wide Material Compatibility: Specialized profiles for abrasive, corrosive, and high-temperature polymers like PVC. Digital Traceability: Unique ID tracking and real-time recording for full production process monitoring. Global Service Support: 24/7 technical support and engineers available for screw redesign and optimization.