... pressure, can used in high building and underground installation special drain pipe is videly used in construction water-supply, ... maintenance. 2. Broad application: Chemical, Oil field, Mining, Textile, printing, dyeing and paper making, Building, Agriculture, Shipbuilding, water supply, ... mm)Pipe Working pressure (MPa) [hot and cold water, special liquid]Pipe Working pressure (MPa) [gas]202.02.51. ...