... machine 2.with CE PVC ,PPR,PE,PVDF pipe fitting injection machine with CE1. PVC raw material is Amorphism High Polymer ,the ... 2. Special design PVC screw for Injection molding machine to produce PVC pipe fitting, smaller compress ratio ... length as to decrease shear heat, screw design with double spiral groove divide into not plasticizing PVC ... PVC ,PPR,PE,PVDF pipe fitting injection machine with CE