| We DALIAN DONGZHAN GROUP manufactures and offers a full range of ductile iron pipes and fittings from DN80mm to DN2600mm, with standard effective length:6m,annually capacity 350000 mt.the products are manufactured according to ISO2531/BS4772/BS EN545. external protection metallic zine complying with the standard ISO8179,and bitumen paint.Internal protection spun the blast furnace cement mortar lining complying with the standard ISO4179.We may offer such special protective linings or coatings as ceramic epoxy, coal tar epoxy or other kinds of materials according to customer¡¯s requirement. |
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