Extruder Screw Elements

135mm Screw Element for Twin Screw Extruder with material of W6Mo5Cr4 Screw Elements: 1. Made of high speed steel (W6Mo5Cr4V2 and M2),Vacuum heating treatment and overall hardening, high wear-resistance and toughness. 2. Made nitrider steel (38CrMoAIA). high hardness, super toughness, anti-corrosion ...