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| International Standard Category: Ceilings. Floors. Stairs |
YSJ 407-1989 Construction operation specification for ground and floor engineering
地面与楼面工程施工操作规程;
| Category No.: | 91.060.30 | Valid Status: | superseded |
| Issued Organization: | 0 | Issued Date: | 1989-1-1 |
| Implemented Date: | 1990-3-1 | Abolished Date: | |
| Superseded Standard.: | YS/T 5407-2022 |
Superseded Date: | 2022-10-1 |
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