Gas valves; angle pattern ball shut-off valves with compression coupling
气阀；带压缩联轴器的角型球形截止阀

1986-06-01

Gas valves; straight pattern ball shut-off valves with compression coupling
气阀；带压缩联轴器的直型球形截止阀

1986-06-01

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