Home / Standards / GB/T 33644-2017 GB/T 33644-2017 Abolished NC press brake—Testing of the accuracy 数控板料折弯机 精度 Standard Type GBT ICS 25.120.10 CCS J62 Status 废止 Issue Date 2017-05-12 Implementation 2017-12-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A