P 23 标准查询与下载
共找到 2 条与 相关的标准，共 1 页
Specifications for investigation of ancient wooden structures
- ICS
- 91.080.20
- CCS
- P 23
- 发布
- 2021-01-21
- 实施
- 2021-02-21
Heilongjiang Provincial Construction Engineering Construction Quality Acceptance Standard for Wooden Structure Engineering
- ICS
- 91.080.20
- CCS
- P 23
- 发布
- 2017-02-20
- 实施
- 2017-03-20
