... 2.DN80--1200 T-type 6 meter 3.zinc spraying, bitumen coating,cement lining ,epoxy 1) Standard: ISO2531, BSEN5452) Effective ... according to ISO4179, sulphate resistant cement4) Outside coating: Zinc coating(≥130/m2) and bitumen paiting or epoxy paiting(≥70μm) according to ... products ductile iron pipes from DN300mm to DN1000mm with epoxy coating inside or outside conform to ISO2531 standard. Epoxy has ...