Home / Standards / GB/T 14328 GB/T 14328 Active Roughing end mill 粗加工立铣刀 Standard Type GBT ICS 25.100.20 CCS J41 Status 现行 Issue Date 2008-06-03 Implementation 2009-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会