... ,long lifetime 4.CE,API,ISO certificates Cast Iron Flange blow down valve :Widely used for gas transmission pipeline, ... as reference. Design & Manufacture standardsASME ,API,MSS ,BS,DIN,JISFace to Face DimensionASME B16.10(JISB2002) ASME ... company hasformed a gate valve, ball valve, butterfly valve, globe valve, check valve, plug valves, control valves, etc. asthe leading valve product system, with ...