... ISO4179, ISO8179, ISO4633, ISO7186, EN545, EN598, BS4772 Standard. DUCTILE IRON PIPES:Mechanical (K-type) jointSIZE RANGE: From DN100mm to DN2600mm STANDARDS ... THICKNESS:K9 is the normative one; we can supply K7, K8, K10, K12 if requested.JOINT TYPE:Mechanical ... Portland cement, Blast Furnace cement, Sulphate Resisting Cement, High Alumina cement according to characteristics of conveyed waterØ Cement ...