GB/T 20331-2025

Active

Machine taper 1:50 pin reamers with parallel shanks

直柄机用1:50锥度销子铰刀

Standard Type
GBT
ICS
25.100.30
CCS
J41
Status
现行
Issue Date
2025-10-31
Implementation
2026-05-01
Responsible Dept
中国机械工业联合会
Drafting Unit
N/A