
Premium Kmd 90 OEM Bimetallic Extruder Parallel Twin Screw Barrel & Extruder Single Screw Barrel Cylinder. OEM/ODM Customization: Available for materials, hardness, nitriding layer depth, and screw straightness. Bimetallic Durability: 2-5mm wear-resistant alloy layer with dual alloy hardness HRC50-65. Precision Nitriding: HV850-1000 hardness with 0.45-0.7mm layer depth and Grade II brittleness. Wide Material Selection: Options include 38CrMoAl, D2, SKD61, 31CrMoV9, and various stainless steels. ISO9001 Quality Control: Certified management system with comprehensive pre-shipment test reports. Advanced Manufacturing: CNC machining, bimetal welding, and 3D scanning for reverse engineering. Global Expertise: 30+ years experience with exports to over 80 countries and 80+ patents. Technical Support: 48-hour response time with on-site support and spare parts supply.