... , rigidity are better than pure plastic pipe and pure steel pipe2) Double layers antisepsis ... dyeing and paper making, Building, Agriculture, Shipbuilding, water supply, drainage, gas, thermoelectricity engineering, food and liquid conveying ... pipe for urban rural water supply in 21st century. Pipe Outer diameter (mm)Pipe Thickness (mm)Pipe Working pressure (MPa) [hot and cold water, special liquid]Pipe ...