... R pipe and fittings, PVC-M pipes and fittings, HDPE pipes and fittings, PB pipes and fittings. They are used for ... different situations. Like water supply and drain system, gas delivery system, industrial liquids ... PVC water supply pipe:1. Material: PVC-U2. Standard: GB/T, ISO, BS, ASTM, DIN3. Length: 4m, 6m or other length4. Color: Blue, white ...