Draft Document - Gas valves for gas installations - straight pattern conical plug valves with screw connection - Nozzles with conical connection
文件草案.气体装置用气阀.带螺纹连接的直型锥形旋塞阀.带锥形连接的喷嘴

2009-03-01

Gas valves for gas installations - Nozzles with conical sealing and gasket
气体装置用气阀.带锥形密封和垫圈的喷嘴

2012-06-01

Gas valves for gas installations - Angle pattern ball valves with screw connection - Nozzles with conical connection
气体装置用气阀.带螺纹连接的角型球阀.带锥形连接的喷嘴

2012-06-01

Gas valves for gas installations - Straight pattern conicel plug valves with screw connection - Nozzles with conical connection
气体装置用气阀.带螺纹连接的直型锥形旋塞阀.带锥形连接的喷嘴

2012-06-01