1.PVC ,PPR,PE,PVDF pipe fitting injection machine 2.with CE PVC ,PPR,PE,PVDF pipe fitting injection machine with CE 1. PVC raw material ... and causticity gas. 2. Special design PVC screw for Injection molding machine to produce PVC pipe fitting, smaller compress ratio to ... over Heating.It’s big viscosity in melting condition for PVC raw material, enlarge corresponding nozzle mouth, meanwhile enlarge ...