... size:1/2"to4" 3.Standard:ANSI,BS,DIN 4.Certificate:CE,ISO9001 5.Best price,excellent quality,quick ... excellent service!Product Information The hermetic plastic PVC male&female thread ball valve1.material:PVC 2.size1/2" to ... 4" 3.Standard:ANSI,BS,DIN 4.Certificate: CE, ISO9001 5.the reasonable ... Fax: +86 579 8520 6300 The hermetic plastic male&female thread ball valve