PE,PP,RPP,PVC,CPVC,PVDF Size:50mm,76mm,100mm Professional experience in production & export ISO9001- ... 2)Size: 50mm,76mm,100mm 3)Material: PP,PE,PVC,PVDF,CPVC,RPP 4)20 years professional manufacturerInstruction: Plastic Heilex Ring ... ), polyvinyl chloride (PVC), chloridized polyvinyl chloride (CPVC) and polyvinylidene fluoride (PVDF). It has features such as high free volume, low pressure ...