Home / Standards / GB/T 23481-2009 GB/T 23481-2009 Active CNC Punching,marking & cutting line for angles 数控角钢加工生产线 Standard Type GBT ICS 25.120.10 CCS J62 Status 现行 Issue Date 2009-04-02 Implementation 2009-11-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A