Specification：

1 Material:38crMoAIA，nitriding treatment，surface hardness HV≥900. Depth of nitration case：0.5-0.8mm

2 Material：38crMoAIA. The surface of the screw edge is welded with dual alloys, which can effectively increase the service life of the screw.

Scope of application：

Ordinary plastic, PP, PE, ABS, PVC, raw material granulation, production of pipes, profiles, sheets and other products.