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 ... as followings:No obviously Melt point , degradate ahove 1500C in air, even if add stabilizing agent, tooling temp. under 2000C, ... material temp, special Barrel surface with double spiral groove which is regard as cooling air to control inside barrel temp, ...