Home / Standards / GB/T 4267-1984 GB/T 4267-1984 Abolished Rotating tools with parallel shanks--Diameters of shanks and sizes of driving squares 直柄回转工具用柄部直径和传动方头尺寸 Standard Type GBT ICS 25.100.30 CCS J41 Status 废止 Issue Date 1984-03-28 Implementation 1985-01-01 Responsible Dept N/A Drafting Unit N/A