
20-650mm Wear-Resistant High-Speed Alloy Precision-Machined Bimetallic Rubber Screw and Barrel Extruder Screw. Customized Material Options: Available in 38CrMoAl, D2, SKD61, 31CrMoV9, and other specialized alloys. OEM/ODM Services: Personalized design and branding services accepted for all product lines. Precision Machining: Advanced CNC equipment ensures screw straightness of 0.015mm and high precision. Dual Alloy Hardness: Features HRC50-65 hardness with double alloy depth of 0.8-2.0mm for durability. Nitriding Treatment: Nitriding hardness reaches HV850-1000 with layer depth of 0.45-0.7mm. ISO9001 Certified Quality: Manufacturing process underpinned by ISO9001-certified quality management systems. Comprehensive After-Sales: 48-hour technical response, on-site support, and regional spare parts inventory. Wide Product Range: Covers single, twin, conical, and injection molding screws with various diameters.