PVC water supply pipe 1.ISO9001,ISO14001,OHSAS18001.. -2.Lengh ... .Normal Diameter: 110~630mm We are a group corporation that engaged in plastic products. Our products include all ... . They are used for different situations. Like water supply and drain system, gas delivery system, industrial liquids ... in the future.The more details about our PVC water supply pipe:1. Material: PVC-U2. Standard: GB/ ...