快关阀 meaning in English

fast valve
quick-closing valve

Marine male threaded weight quick - closing valves
船用外螺纹重块式快关阀
Quick shutting valve for marine use
船用快关阀
Main products - marine pipe fittings : marine plate glass oil level gauges , marine double colored leveplate glass oil level gauges , magnetic oil gauge , marine cast steel with flanges , quick closing valves , bronze valve series , sea water filters , oil filters sump tanks , control boxes for quick closing valves , oil flushing sysstem . deck machinery . 200kg motor driven cranes , etc . hand tools : slip joint pliers . we also handle the design and manufacturing of all knds of non - standard machinery and equipment and valves
主要产品船舶管系附件：船用平板玻璃液位计船用双色平板玻璃液位计磁性液位计船用法兰铸钢阀快关阀青铜阀系列速关阀控制箱海水滤器油滤器泥箱串油系统甲板机械： 200kg电动吊车等五金工具：鲤鱼钳等钳类。