GB/T 31438-2015

Active

Steel thin-walled sonic-testing tubes for concrete bored piles

混凝土灌注桩用钢薄壁声测管

Standard Type
GBT
ICS
93.040
CCS
P28
Status
现行
Issue Date
2015-05-15
Implementation
2015-08-01
Responsible Dept
交通运输部
Drafting Unit
N/A