High quality plastic check valve 1)Material: UPVC,FRPP,PVDF, PPH,CPVC 2)Size:DIN15-100 3)HG,ANSI,DIN,ANSI High quality plastic check valve 1 ... .Item: High quality plastic check valve2.Material: UPVC,FRPP,PVDF, PPH,CPVC3 ... all over the world.3.our factory have do the OEM and ODM service for many years.4.we have own ...