... is used for manufacturing the PP-R, PEX or PE-RT pipes. PP-R pipe is a nontoxic, hygiene, ... heat-resistant and good warmth keeping pipe. PP-R ... recycleable. PEXpipe has the excellent temperature resistance property. PE-RT pipe, manufactured on the base of PEX, ... doesnt need cross-link technique, and PE-RT can be recycleable and it is better in ...