... ISO8179, ISO4633, ISO7186, EN545, EN598, BS4772 Standard. DUCTILE IRON PIPES:Tyton (T-type) jointSIZE RANGE: From DN100mm to DN2600mm STANDARDS FOLLOW:ISO2531, ... can supply K7, K8, K10, K12 if requested. JOINT TYPE:l (T-type) jointINTERNAL LINING: Depending on the internal condition of ... be applied. Ø Metallic Zinc with finishing layer in accordance with ISO8179-1, with a mean mass of zinc coating ...