1.PVC ,PPR,PE,PVDF pipe fitting injection machine 2.with CE PVC ,PPR,PE,PVDF pipe fitting injection machine with CE1. PVC raw material is Amorphism ... and causticity gas. 2. Special design PVC screw for Injection molding machine to produce PVC pipe fitting, smaller compress ratio to suitable ... to enlarge screw torque. PVC ,PPR,PE,PVDF pipe fitting injection machine with CE