GB/T 4697-2008

Abolished

Hot-rolled U-type steel for mine timbering

矿山巷道支护用热轧U型钢

Standard Type
GBT
ICS
77.140.70
CCS
H44
Status
废止
Issue Date
2008-08-05
Implementation
2009-04-01
Responsible Dept
中国钢铁工业协会
Drafting Unit
N/A