... steel ball valve ISO9001:2000 Approved Process:precision casting Standard:JIS,DIN,ASTM,BS OEM service available casting steel ball ... )1.ISO9001:2000 Approved 2.OEM service available 3.Materials: stainless steel,cast iron,pig iron,carbon ... Industrial parts, Machinery parts, hardware, construction parts, valve/valve parts,train,craft,doorhandle,hinge,hydraulicpressure,construction,agricultural machinery ...