80/156 Twin Conical Screw Barrel Zhoushan Hita Plastic Machinery Factory Base Info Standard:GBTechnics:MillFeature:Extrusion,Good Output,Good PlasticizingMaterial:38crmoaia Stell with BimetallicSize:80,156,80,140Brand:HtUse Time:180daysTrademark:HTOrigin:Zhoushan Description Pre:Vented Screw and Barrel for Plastic Extrusion Next:Heat Shrinkable Tube Screw Barrel