Bimetallic Screw and Barrel for Plastic Extruder Machine Zhoushan Hita Plastic Machinery Factory Base Info Purpose:Recycle Mixed Plastic MaterialStandard:GBTechnics:MillingMaterial:38crmoaia Steel with NitridingModel NO.:45 50 60Trademark:HITASpecification:100 120 150Origin:Zhoushan Description Pre:EPS Continuous Pre-Expanders Next:Recycled PP, PE Pelletizing Machine Screw/Shaft Barrel