Material: ductile iron ï¼?DIï¼?; standard: ISO2531,BS EN545, BS EN598, AWWA C219, AWWA C110, ASME B16.42; internal lining: â? cement mortarâ?¡Sulphuric Resistance Cement â?¢Sulphuric Resistance Cement and Epoxy â?£H.A.cement; external coated: â? zinc and bitumenâ?¡zinc and 2 epoxy coatings â?¢Metallic Zinc and a coating of suitable etching prima and 2 Epoxy Coatings â?£zinc and PU; suitable medium: potable waterã??drainageã??sewageã??waste water; suitable tempreture: -40°ï½? 125°; packing: plastic film plus pallet; origin: China.