The valves with top quality can be supplied the size from DN ... diaphragm valves, ball valves, and instrument valves can be supplied accordance with the standard & code of GB, ASME, ... API, ANSI, AWWA, DIN, BS, NF, JIS, IBR etc.. The pressure of the valves can be ... No4400, No4405, K400, K500 etc.. The valves can be used for power plant, nuclear power plant, oil ...