... , reliable connect. Pp-r good weldability, pipe, tube can be used to melt and fused connection, convenient installation, reliable connector, its ... amount, does not affect the quality of products.Pp-r pipe main USES what?1, building of hot and cold water systems, including ... C = 1.25, On important occasions, and long-term continuous use of temperature, and experiment.it 70 degrees may be at higher ...