Home / Standards / GB/T 22561-2008 GB/T 22561-2008 Abolished Vacuum heat treatment 真空热处理 Standard Type GBT ICS 25.200 CCS J36 Status 废止 Issue Date 2008-12-06 Implementation 2009-06-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委