Oxygen control in steel and oxide metallurgy 鋼中氧的控制及氧化物冶金
Oxygen control valves consist of valve , actuator and accessories 氧氣調(diào)節(jié)閥由閥門,氣動(dòng)執(zhí)行機(jī)構(gòu)及附件組成
Technical specification for nitrogen injection oxygen control fire prevention system 注氮控氧防火系統(tǒng)技術(shù)規(guī)程
Design , fabrication , inspection and test for the supplied product shall accord fully with the requirements of technical specification for oxygen control valves 所供產(chǎn)品的設(shè)計(jì),制造,檢驗(yàn)和驗(yàn)收應(yīng)符合氧氣調(diào)節(jié)閥技術(shù)規(guī)格書的要求