1)High quality UPVC swing check valve 2)Size:DIN25-250 3)Standard:HG,ANSI,DIN, HG 4)Pressure: 0.5-0.7MPA High quality UPVC swing check valve 1.Item: High quality UPVC swing check valve2.Size:DN25-DN2503.Material:UPVC,CPVC,FRPP,PVDF,PPH4.Standard:HG,ANSI, DIN,JIS 5.Type: ball,swing our company advantage: 1.we have own factory for over 20 years with competitive price and good quality.2.our products ...