GB/T3942-2002,flanged stainless steel valves,used for war ship and merchant ships,provide CCS ... .cast steel,stainless steel,nodular cast ironjiangyin marine valves co.,ltd provides marine valves with different types such as DIN,JIS,GB ... etc,valves are exported to Singapore,Australia,German,Korea,Japan, ... considerate service for u. flanged stainless steel stop valves