Home / Standards / GB/T 6443-1986 GB/T 6443-1986 Abolished Involute cylindrical gears--Information of the dimensional data to be given on the drawing 渐开线圆柱齿轮图样上应注明的尺寸数据 Standard Type GBT ICS 21.200 CCS J17 Status 废止 Issue Date 1986-06-07 Implementation 1987-05-01 Responsible Dept 国家标准委 Drafting Unit N/A