... of seamless, copper pipePipe Outer diameter (mm)Pipe Thickness (mm)Pipe Working pressure (MPa) [hot and cold water, special liquid]Pipe Working ... and combustion gas;Agriculture:Deep well pipe, Strainer, under drain conveying pipe, drainage pipe, irrigation pipe;Chemical industry:Manufacturing of Acid, alkali ... air mixture, polymer liquid;Expressway (high way)Sewer pipe underground and cable conveying ...