Home / Standards / GB/T 6339-1986 GB/T 6339-1986 Abolished Dovetail and inverse dovetail milling cutters with flatted parallel shanks 削平型直柄燕尾槽铣刀和削平型直柄反燕尾槽铣刀 Standard Type GBT ICS 25.100.20 CCS J41 Status 废止 Issue Date 1986-04-28 Implementation 1987-03-01 Responsible Dept N/A Drafting Unit N/A