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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/Z 35474-2017 |
Natural gas—Technical Explanation for calculation of physical properties from composition 天然气 通过组成计算物性参数的技术说明 |
China National Standards Explanation |
 English PDF |
| GB/Z 16935.2-2013 |
Insulation coordination for equipment within low-voltage systems―Part 2-1: Application guide-Explanation of the application of the IEC 60664 series, dimensioning example and dielectric testing 低压系统内设备的绝缘配合 第2-1部分：应用指南 GB/T 16935系列应用解释,定尺寸示例及介电试验 |
China National Standards Explanation |
English PDF |
| GB/T 12060.2-2011 |
Sound system equipment - Part 2: Explanation of general terms and calculation methods 声系统设备 第2部分：一般术语解释和计算方法 |
China National Standards Explanation |
English PDF |
| GB/T 6417.2-2005 |
Classification and Explanation of imperfections in pressure welded joints 金属压力焊接头缺欠分类及说明 |
China National Standards Explanation |
English PDF |
| GB/T 6417.1-2005 |
Classification and Explanation of imperfections in fusion welded joints 金属熔化焊接头缺欠分类及说明 |
China National Standards Explanation |
English PDF |
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