... fittings material:ductile iron GGG500-7 specfication:DN80-DN2000 standards:ISO2531 EN545/598 BS4772 1,The ductile iron pipe fittings are ... good quality and reasonable price.2,from DN80-DN20001),Standard* ISO2531, EN545, EN5982), Material* Ductile Iron3) coating4) Various joint method available ...