... EN545 in China.We can offer the centrifugal casting ductile iron pipes according to ISO2531 and EN545, DN80-1200mm, covering 17 ... sizes.Material:Ductile iron(1) The standed: ISO2531-1998, EN545-2006,Class:K8,K9 ... ISO8179(5) DN80-DN1200mm(6) High strength, lighter than gray iron, good corrosion resistance, no furring, small flow resistance, easy fixing ...