Home / Standards / GB/T 15749-2008 GB/T 15749-2008 Active Measuring method in quantitative metallography 定量金相测定方法 Standard Type GBT ICS 77.040.30 CCS H24 Status 现行 Issue Date 2008-10-20 Implementation 2009-04-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委