MT 644-1997
Active
DB41/T 2140-2021
Abolished
Henan ProvinceLocal standards
DB41/T 2140-2021 Operating and Maintenance Manual for Turntable Geological Drilling Machine
DB41/T 2140-2021 Operating and Maintenance Manual for Turntable Geological Drilling Machine
Basic Information
Standard Code:
DB41/T 2140-2021
Standard Type:
Local standards
Standard Status:
Abolished
is_force_gb:
no
CCS Name:
Geological exploration equipment
ICS Name:
Other mining equipment
Publish Date:
2021-04-12
Implement Date:
2021-07-12
Pages:
12 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