
Screw And Barrel For Film Blowing Machine. Advanced CNC Machining: Utilizes Fanuk series CNC computer-controlled milling machines for precision. High Precision Straightness: Screw straightness guaranteed at 0.015mm/m via 18m depth hole drilling. Superior Nitrogen Treatment: Depth 0.6-0.8mm with hardness 900-1100HV for enhanced durability. Customizable Base Materials: Available in 38CrMoAlA and 42CrMo materials to meet specific needs. Comprehensive Warranty: Standard 1-year warranty coverage provided for mechanical reliability. 20+ Years Manufacturing Experience: Over two decades of expertise in designing plastic machine screws and barrels. OEM and ODM Services: Full OEM and ODM capabilities available for custom branding and design. Global Shipping Network: Fast delivery via Ocean, Air, or Express from Ningbo and Shanghai ports.