Home / Standards / GB/T 23291-2009 GB/T 23291-2009 Active Machine tools - Test conditions for self-centring,manually-operated chucks with one-piece jaws 机床 整体爪手动自定心卡盘检验条件 Standard Type GBT ICS 25.060.20 CCS J52 Status 现行 Issue Date 2009-03-05 Implementation 2009-10-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会