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GB/T 41093-2021機床安全車床Machine tools safety—Turning machines2022-10-25

JB/T 8008.4-1999機床夾具零件及部件.轉(zhuǎn)動墊圈The parts and units of jigs and fixtures - Turning washer...2022-06-13

JB/T 8010.4-1999機床夾具零件及部件.轉(zhuǎn)動彎壓板The parts and units of jigs and fixtures - Turning bend clamp p...2022-06-13

氣化爐殼體翻轉(zhuǎn)輔具結(jié)構(gòu)分析計算2020-07-12

Effect of roadway turnings on gas explosion propagation characteristics in coal mines2020-06-12