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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 5824-2021 |
Size system of opening for windows and doors in building 建筑门窗洞口尺寸系列 |
China National Standards Size system opening |
 English PDF |
| GB/T 5824-2008 |
Size system of opening for windows and doors in building 建筑门窗洞口尺寸系列 |
China National Standards Size system opening |
English PDF |
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