Vented Screw and Barrel for Plastic Extrusion Zhoushan Hita Plastic Machinery Factory Base Info Standard：GBTechnics：MillingMaterial：38crmoaia Steel with NitridingPurpose：Recycle Mixed Plastic MaterialTrademark：HITASpecification：100 120 150Origin：Zhoushan Description Pre：Recycled Plastic Mixed Pelletizing Screw&Barrel Next：80/156 Twin Conical Screw Barrel
