... check valve 2)Size:DIN25-250 3)Standard:HG,ANSI,DIN, HG 4)Pressure: 0.5-0.7MPA High quality UPVC ... Size:DN25-DN2503.Material:UPVC,CPVC,FRPP,PVDF,PPH4.Standard:HG,ANSI, DIN,JIS 5.Type: ball,swing our ... do the OEM and ODM service for many years.4.we have own import and export right.5.small ... and technical QC team to ensure 100% products checking.4.Efficient sales team and excellent customer service.5.We ...