... 2.5MPa Packing:4m or according to clients' inquiry PP-R pipe , also called random copolymerized polypropylene pipe,is a ... lightness,corrosion resistance,anti-deposition and long service life,PP-R pipe also enjoy some other advantages,like hygienicness,heatresistance ... -friendly construction material.Compared with aluminum multiunit pipe ,PP-R pipe can be made into tubular products with larger calibers ...