GB/T3942-2002,flanged stainless steel valves,used for war ship and merchant ... 2.5, 4.0, 6.4MPamaterial of stop valves:bronze,brass,gun metal,cast iron,forged steel.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, ...