... 3.ISO9001,ISO14001,OHSAS18001 4.Easy & convenient install PPR hot and cold water weight of pipe fitting 1.As a company ... ducts, PE fuel gas, etc. 2. Details: Name: PPR hot and cold water weight of pipe fitting SpecificationOutside diameter(mm):20 ... rust, so without re-pollution to the water and pureness;Convenient and reliable installation, low construction expenses;Good sealing performance;Healthy ...