China Code for extractive GB Standards Search Result |
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GB 50717-2011 Code for extractive metallurgy construction quality acceptance of mechanical equipment installation engineering of heavy non-ferrous metals 重有色金属冶炼设备安装工程质量验收规范 - 中英文版 |
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GB/T 50716-2011 Code for extractive metallurgy construction of equipment installation engineering of heavy non-ferrous metals 重有色金属冶炼设备安装工程施工规范 - 中英文版 |
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