QB/T 2639-2004.5.4.9封闭式干洗机蒸馏系统运行应有防爆炸的措施a)抽真空应达到机器中气体中的含氧量不能导致机器爆炸的真空压力,当真空压力高于保...

行业标准2023.07.21

JTS 182-1-2009 Design Code for Hydrojunction General Layout of Canalization Work...

行业标准2023.07.21

GB 3390.4-1989.Conjoining parts for hand operated square drive socket wrenc hes....

国家标准2023.07.21

QB/T 2638—2004.Conveyor type needle detector.5.3外观质量臼视或手感方法检查，应符合4.3要求。6检验规则6.1好...

行业标准2023.07.21

GB 3390.5-1989.Inspection, packaging and marking for hand operated socket w re n...

国家标准2023.07.21

JTS 196-5-2009 Technical Code of Safety Inspection for Three Gorges Shiplock.1总则...

行业标准2023.07.21

GB 4389-1984.A ssembly tools for screws and nuts-open-end double-head engineers...

国家标准2023.07.21

GB 4390-1984.Spanner gaps and sockets- m etric series- tolerances for general us...

国家标准2023.07.21

QB/T 2630.1-2004.Gold craft picture - Part 1 : Gold film on gold craft pictures....

行业标准2023.07.21

GB 4391-1984.Com binations of double-end wrenches gaps.GB 4391参照采用国际标准ISO 1085-...

国家标准2023.07.21