... cast steel valves,used for war ship and merchant ships,provide CCS certificate. cast steel stop valvestype: ... 2.5, 4.0, 6.4MPamaterial of stop check valves:bronze,brass,gun metal,cast iron,forged 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 ...