标 准 编 号：BS EN ISO 11116-1-1999 简体中文标题：气瓶.阀门与气瓶连接用17E锥型螺纹.规范 繁体中文标题：气瓶.阀门与气瓶连接用17E锥型螺纹.规范 English Name：Gas cylinders - 17E taper thread for connection of valves to gas cylinders - Specifications...