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：

general plastic、PP、PE、ABS、PVC、granulation of raw materials, production of pipes, profiles, sheets and other products.