
法兰和对夹连接弹性密封蝶阀
Flanged and wafer resilient seal butterfly valves
Flanged and wafer resilient seal butterfly valves
Industrial valves-Pressure testing
Metal-seated ball valve
Steel ball valves for petroleum, petrochemical and allied industries
Steel globe valves and lift check valve for petroleum ,petrochemical and allied industries
Valve inspection and testing
Compact steel valves
Bolted bonnet steel gate valves for petroleum and natural gas industries
Small power motors-Part 1:General technical requirements
Safety requirements of small power motors