... , health and reliable, not only for hot and cold water pipe, also can be used for pure water system.2, heat insulating and energy ... .Pp-r pipe main USES what?1, building of hot and cold water systems, including centralized heat-supply system,2 the heating system, building ... .0 ~ 160 MPa pipes, fittings, Used for hot water system PN2.0 MPa experiment.it choose pipe, tube.3 and in consideration of ...