MT 644-1997
Active
DB37/T 4509-2022
Active
Shandong ProvinceLocal standards
DB37/T 4509-2022 Mine explosion proof door (explosion proof gate) safety inspection technical specification
DB37/T 4509-2022 Mine explosion proof door (explosion proof gate) safety inspection technical specification
Basic Information
Standard Code:
DB37/T 4509-2022
Standard Type:
Local standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Mine machinery and equipment
ICS Name:
Other mining equipment
Publish Date:
2022-06-02
Implement Date:
2022-07-02
Pages:
10 pages
Development Information
Related Standards
MT 646-1997
Abolished
MT 646-1997 Frictional metal prop
MT 668-1997
Replaced
MT 668-1997 Technical Conditions for Flame-Retardant Steel-Mesh-Core Conveying Belt for Coal Mines
MT 669-1997
Active
MT 669-1997 Technical condition of fire-resistant steel-cable conveyor-belt in coal mining
MT/T 154.7-1997
Active
MT/T 154.7-1997 Model designation of separating equipment for coal
MT/T 660-1997
Active