钢结构角焊缝探伤对比反射体
Release time:2024-08-09
Hits:
- Affilication of Author(s):
- 校办企业
- Scope of patent:
- 国内
- Disigner of the Invention:
- 王杨俊
- Type of Patent:
- Utility models
- State of Patent:
- 专利授权
- Service Invention or Not:
- yes
- Application Date:
- 2022-10-27
- Authorization Date:
- 2023-03-17
- First Author:
- jinruiling,yangxiaodong
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