Material: ductile iron DI; standard: ISO2531,BS EN545, BS EN598, AWWA C219, AWWA C110, ASME B16.42; internal lining: �cement mortar�Sulphuric Resistance Cement �Sulphuric Resistance Cement and Epoxy �H.A.cement; external coated: �zinc and bitumen zinc and 2 epoxy coatings �Metallic Zinc and a coating of suitable etching prima and 2 Epoxy Coatings �zinc and PU; suitable medium: potable water,drainage,sewage,waste water; suitable tempreture: -40� 125�; packing: plastic film plus pallet; origin: China.