... ,used for war ship and merchant ships,provide CCS certificate. stainless steel stop valvestype:A and B (for war ships) AS and BS ... , 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 ... to provide warm,quick and considerate service for u. flanged stainless steel stop valves