... 24MPa.4. The pipes meet the standard JC552, as for export, the standard ASTMD2996 is adopted.Specifications of GRP sand ... ISO09001, ISO14001, ISO18001 and CRAA. They also meet the "water standard for domestic living" (GB5749-85). No pollution, no leakage, high ... sewage lines.2. Industrial wastes lines.3. Potable water lines.4. Corrosive fluids lines.5. Sea water lines. GRP pipe for sewage water