GB/T 6374-1986
Replaced
DB34/T 4381-2023
Active
Anhui ProvinceLocal standards
DB34/T 4381-2023 "Two Huai Coal Mine Surface Directed Multi-branch Horizontal Well Drilling Technology Specification"
DB34/T 4381-2023 "Two Huai Coal Mine Surface Directed Multi-branch Horizontal Well Drilling Technology Specification"
Basic Information
Standard Code:
DB34/T 4381-2023
Standard Type:
Local standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Geological and mineral exploration and development
ICS Name:
Drilling and excavation equipment
Publish Date:
2023-03-01
Implement Date:
2023-04-01
Pages:
36 pages
Development Information
Related Standards
GB/T 9151-1988
Replaced
GB/T 9151-1988 Terms of drilling engineering
GB/T 12761-1991
Replaced
GB/T 12761-1991 Raise-boring machines
GB/T 13343-1992
Replaced
GB/T 13343-1992 Blast hole tricone rock bits
GB/T 13344-1992
Replaced
GB/T 13344-1992 Downhole drill hammers and bits
GB/T 14446-1993
abolished_transferred