GB/T 12773-2021

Active

Valve steel and superalloy bars for internal combustion engines

内燃机气阀用钢及合金棒材

Standard Type
GBT
ICS
77.140.60
CCS
CCSH44
Status
现行
Issue Date
2021-05-21
Implementation
2021-12-01
Responsible Dept
中国钢铁工业协会
Drafting Unit
N/A