PVC Check Valve/ANSI/JIS/ISO/BS 1)Standard:ANSI,JIS,DIN,BS; 2)Joint End:Socket or ... easy to di PVC Check Valve/ANSI/JIS/ISO/BS1)Standard:ANSI,JIS,DIN,ISO;2)Joint End:Socket or Threaded;3 ... Injection;Quality Assurance: 24-hour Rigorous QC Team which is ISO 9001 Certified;Laboratory: Advanced Laboratories with a complete system of ... : Specialised Pipes in USA, Canada. PVC Check Valve/ANSI/JIS/ISO/BS