Home / Standards / GB/T 25744-2010 GB/T 25744-2010 Active Metallographic examination for carburizing quenching and tempering of steel parts 钢件渗碳淬火回火金相检验 Standard Type GBT ICS 25.200 CCS J36 Status 现行 Issue Date 2010-12-23 Implementation 2011-06-01 Responsible Dept 国家标准委 Drafting Unit N/A