Industrial valves - isolating valves for lng - specification for suitability and appropriate verification tests 工業(yè)閥門.液化天然氣用隔離閥.適用性驗證試驗規(guī)范
Valves for water supply - fitness for purpose requirements and appropriate verification tests - isolating valves 供水用閥門.對目的要求的符合性及合適的驗證試驗.截止閥
Valves for waterworks purposes - stem caps for use on isolating valves and associated water control apparatus - specification 水廠用閥.隔離閥和相關(guān)控水設(shè)備用船首柱冠板.規(guī)范