GB/T 41056-2021

Active

Full face tunnel boring machine—Double shield hard rock tunnel boring machine

全断面隧道掘进机 双护盾岩石隧道掘进机

Standard Type
GBT
ICS
91.220
CCS
P97
Status
现行
Issue Date
2021-12-31
Implementation
2022-07-01
Responsible Dept
中国机械工业联合会
Drafting Unit
N/A