Home / Standards / GB/T 28390-2012 GB/T 28390-2012 Active High speed five-side machining center for curtain wall aluminium alloy profiles 幕墙铝型材高速五面加工中心 Standard Type GBT ICS 25.040.10 CCS J50 Status 现行 Issue Date 2012-05-11 Implementation 2012-10-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A