GB/T 20704-2006

Active

Rock drilling - Rotary drill-rods and rotary drill-bits for dry drilling - Connecting dimensions

岩石钻孔 干式钻杆和钻头 连接尺寸

Standard Type
GBT
ICS
73.100.30
CCS
D91
Status
现行
Issue Date
2006-12-20
Implementation
2007-05-01
Responsible Dept
中国煤炭工业协会
Drafting Unit
N/A

🔗 Related Standards / 同类标准

GB/T 2885.5-1981 Flat deck wagon for metallic mines--Basicparameters and dimensions GB/T 2885.3-1981 Single-side tipping and curved rail wagon for metallic mines--Basic parameters and dimensions GB/T 2885.2-1981 Tilting wagon for metallic mines--Basic parameters and dimensions GB/T 2885.1-1981 Solid-bottom wagon for metallic mines--Basic parameters and dimensions GB/T 2885.6-1981 Material supply wagon for metallic mines--Basic parameters and dimensions GB/T 2885.4-1981 Automatic drop bottom wagon for metallic mines--Basic parameters and dimensions GB/T 4593-1984 Types and specifications for shaft sinking winches GB/T 6374-1986 Shanks for rock drilling machines and pneumatic tools and fitting dimensions of chuck bushings