China General Code for Acc GB Standards Search Result |
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GB 55019-2021 General Code for Accessibility in Building and Municipal Engineering 建筑与市政工程无障碍通用规范 - 中英文版 |
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GB 50231-2009 General code for construction and acceptance of mechanical equipment installation engineering 机械设备安装工程施工及验收通用规范 - 中英文版 |
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