GB
|
中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
|
GB/T 8-2021
|
|
Square head bolts -- Product grade C 方头螺栓 C级 |
|
|
|
Issued Date:2021/12/31 |
|
Implemented Date:2022/7/1 |
|
Issued by: |
|
The Standardization Administration of the People's Republic of China |
|
|
|
|
|