China 'GB/T 20323-2020
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 20323-2020
Milling cutters designation —Shank-type and bore-type milling cutters of solid or tipped design or with indexable cutting edges 铣刀代号 整体或镶齿结构或带可转位切削刃的带柄和带孔铣刀
Issued Date:2020
Implemented Date:2021/3/1
Issued by:
The Standardization Administration of the People's Republic of China