... -1999,flanged cast steel valves,used for war ship and merchant ships,provide CCS certificate. cast steel stop valvestype:A and ... B (for war ships) AS and BS(for merchant ships)medium:water,pipe and so onpressure:1.6, 1 ... .0, 2.5, 4.0, 6.4MPamaterial of stop check valves:bronze,brass,gun metal,cast iron,forged steel.cast ... ,quick and considerate service for u. flanged cast steel globe check valves