GB/T 33779.3-2021 光纤特性测试导则第3部分:有效面积(Aeff)
GB/T 33779.3-2021.Guidance for special characteristic of optical fibre-Part 3: E...
国家标准2023.08.07
GB/T 33779.3-2021.Guidance for special characteristic of optical fibre-Part 3: E...
国家标准2023.08.07
GB/T 17650.1-2021.Test on gases evolved during combustion of materials from cabl...
国家标准2023.08.07
GB/T 40091-2021.Requirements for safety measures of relaying protection and secu...
国家标准2023.08.07
GB/T 40090-2021.Code for operation and maintenance of energy storage station.1范围...
国家标准2023.08.07
GB/T 16458-2021.Terminology for abrasives and abrasive products.1范围GB/T 16458界定了...
国家标准2023.08.07
GB/T 28897-2021.Steel-plastic compound pipes and fittings for fluid service.1范围G...
国家标准2023.08.07
GB/T 25195.4-2021.Cranes- Graphical symbols-Part 4: Jib cranes.1范围GB/T 25195的本部分...
国家标准2023.08.07
GB/T 7739.4-2021.Methods for chemical analysis of gold concentrates-Part 4: Dete...
国家标准2023.08.07
GB/T 21017-2021.Technical specifications for maize drying.1范围GB/T 21017规定了玉米干燥术语...
国家标准2023.08.07
GB/T 19346.3-2021.Methods of measurement of amorphous and nanocrystalline alloys...
国家标准2023.08.07