GB/T 6374-1986
Replaced
T/EJCCCSE 255-2024
Active
Group standards
T/EJCCCSE 255-2024 Enhanced Long Shaft Integrated Drilling Bit
T/EJCCCSE 255-2024 Enhanced Long Shaft Integrated Drilling Bit
Price:
$ 20.00
Basic Information
Standard Code:
T/EJCCCSE 255-2024
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
-
ICS Name:
Drilling and excavation equipment
Publish Date:
2024-12-26
Implement Date:
2024-12-31
Scope
Main technical content: This document specifies the composition structure, material requirements, technical requirements, test methods, inspection rules, marking and packaging of reinforced long spiral integrated drill bits. This document is applicable to the production and inspection of reinforced long spiral integrated drill bits (hereinafter referred to as "integrated drill bits")
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