Home / Standards / GB/T 12603-2005 GB/T 12603-2005 Active Classifications and designations for metal heat treatment 金属热处理工艺分类及代号 Standard Type GBT ICS 25.200 CCS J36 Status 现行 Issue Date 2005-07-21 Implementation 2006-01-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委