Home / Standards / GB/T 6131.1-2006 GB/T 6131.1-2006 Active Cylindrical shanks for milling cutters - part 1: Types and sizes of plain cylindrical shanks 铣刀直柄 第1部分：普通直柄的型式和尺寸 Standard Type GBT ICS 25.100.20 CCS J41 Status 现行 Issue Date 2006-07-20 Implementation 2007-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会