... /EN545/BS4772 DN80-DN1200mm,ISO2531,BS En545,ISO4179,ISO8179,for water & gas transportation understandDuctile Iron Pipe Features:1) The pipes are ... are the NR, NBR, EPDM, etc.Ductile iron pipes for water conveyance:Product standards: BS EN545:2002, ISO2531:19981) Pipes are ... .21691167282.3971000104813.5161.3309.32017167336.8391200125515.3237.7420.12758167460.586 water pressure test ductile iron pipe