... weight, corrosion resistance, not fouling, long service life, etc The PP-R pipe officially named the no rules copolymerization polypropylene tube, and it ... used as water supply pipes on home improvement projectsThe PPR pipe are completely integrated into each other by the hot- ... cold water pipe Pipe diameter of PPR pipe is from 16mm to 160mm,and 20mm,25mm is popular among the home decoration PP-R Pipe