NB/T 10522.3-2021
China industry
standard english version:
NB
中华人民共和国行业标准
INDUSTRY
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
NB/T 10522.3-2021
Automatic control waterproof gates for mines - Part 3: Specifications for engineering design, construction and acceptance 矿用自动控制防水闸门 第 3 部分:工程设计、施工及验收规范
Issued Date:2021/1/7
Implemented Date:2021/4/1
Issued by:
The Standardization Administration of the People's Republic of China