Product Description

TECHNICAL DATA ☆ Depth of nitration case:0.**0.7mm ☆ Hardness of nitration:HV*******0 (HRc*6°**5°) ☆ Roughness of the surface:Ra 0.4μm ☆ Screw straightness: 0.**5mm/m ☆ Chrome plating thickness: 0.***0.1mm ☆ Bimetal coating thickness 1.**2.0mm ☆ Material: Base material *8CrMoAlA, Welded inlay on the flight, prolong life of screw. Easy wearing parts of barrel feed inlet made from imported anti-wear alloy can be improvde abrasion performance.