GB/T 39495-2020.Metallic and other inorganic coatings- Chromate- free chemical conversion coatings on allumion and its alloys.1范围GB/T 39495规定了铝及铝合金水洗和免洗无...
GB/T 21967-2020.YBZE and YBZSE series flameproof electromagnetic braking three-phase induction motors for crane application-Technical specification.1范围GB/T 21967规定了YBZE、...
GB/T 21968-2020.YBZS series flameproof double speed three-phase induction motors for crane application-Technical specification.1范围GB/T 21968规定了YBZS系列起重用隔爆型双...
GB/T 21971-2020.YZD series multi-speed three-phase induction motors for crane application-Technical specification.1范围GB/T 21971规定了YZD系列起重用多速三相异步电动机...
GB/T 39519-2020.Hydranlic cylindrically helical compression spring with high working stress-Technical specifications.1范围GB/T 39519规定了高应力液压元件用圆截面等节距...
GB/T 39520-2020.Test method for determination the residual stress of spring by X-ray diffraction.1范围GB/T 39520规定了采用X射线衍射原理检测弹簧(螺旋弹簧、钢板弹...
GB/T 39523-2020.Test method for torsional vibration of precision planetary cycloidal reducers.1范围GB/T 39523规定了精密行星摆线减速器扭转振动的术语和定义、试...
GB/T 39416-2020.Test methods of fuel consumption for truck crane.1范围GB/T 39416规定了汽车起重机(含全地面起重机.以下简称起重机)燃油消耗量的试验方法。...
GB/T 28125.2-2020.Gas analysis-Determination of hazardous materials in air separation process一Part 2 : Determination of mineral oil.1范围GB/T 28125的本部分规定了空分工艺...
GB/T 39486-2020.Chemical reagent-General rules for inductively coupled plasma mass spectrometry.1范围GB/T 39486规定了化学试剂用电感耦合等离子体质谱法对仪器的要...
