GB/T 19204-2020.General characteristics of liquefied natural gas. 1范围 GB/T 19204给出了液化天然气的一般特性、健康与安全、建造材料。 GB/T 19204可做液化天然气领域其他标准的参考,也可供设计和操作液化天然气设施的人

GB/T 8454-2020.Reduced ilmenite powder for welding rob-Determination of ferrous iron content-Potassium dichromate titrimetric method. 1范围 GB/T 8454规定了

GB/T 38939-2020.Nickel-based alloy-Determination of multi-element contents-Spark discharge atomic emission spectrometric method( routine method ). 1范围

GB/T 38874.2-2020.Tractors and machinery for agriculture and forestry-Safety-related parts of control systems- Part 2 : Concept phase. 1范围 GB/T 38874的

GB/T 38874.1-2020.Tractors and machinery for agriculture and forestry-Safety-related parts of control systems-Part 1 : General principles for design a

GB/T 38940-2020.Precision expansion alloys for sealing to silicon and silicon components. 1范围 GB/T 38940规定了硅组件用精密封接合金的订货内容、分类和代号、尺寸、外形、重量、技术要求、试验方法、检验

GB/T 24180-2020.Cold-reduced electrolytic chromium/ chromium oxide coated steel sheet and strip. 1范围 GB/T 24180规定了冷轧电镀铬钢板及钢带的分类和代号、牌号及标记、尺寸、外形、重量、技术要求

GB/T 38955-2020.Carbon contact strips for urban rail transit vehicles. 1范围 GB/T 38955规定了城市轨道交通车辆用炭滑板产品的技术要求、检验方法、检验规则、标志、包装、运输和贮存。 GB/T 38955适用于城市轨道交通

GB/T 38941-2020.Superalloy rods for powders atomized by plasma rotating electrode process. 1范围 GB/T 38941规定了等离子旋转电极法雾化粉末用高温合金棒料的订货内容、尺寸、外形、重量、技术要求、试验方

GB/T 38874.3-2020.Tractors and machinery for agriculture and forestry-Safety-related parts of control systems-Part 3 :Series development , hardware an