PP-R pipe is known of polypropylene pipes, polypropylene random copolymer with a pipe by extrusion, injection molding a tube. Europe's early development and application of 90 new plastic pipe products. PP-R in the '80s, using gas polymerization processes to make about 5% PE in the molecular chain of PP random uniform polymer (random copolymer) and a new generation of pipe materials. It has good impact resistance and long-term creep properties.
