GB/T 34109-2017

Active

Seamless steel tubes for drill rod of rotary digging machine

旋挖机钻杆用无缝钢管

Standard Type
GBT
ICS
77.140.75
CCS
H48
Status
现行
Issue Date
2017-07-31
Implementation
2018-04-01
Responsible Dept
中国钢铁工业协会
Drafting Unit
N/A