Home / Standards / GB/T 15018-1994 GB/T 15018-1994 Active Designation of precision alloys 精密合金牌号 Standard Type GBT ICS 77.120 CCS H58 Status 现行 Issue Date 1994-04-04 Implementation 1994-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A