Home / Standards / GB/T 224-2008 GB/T 224-2008 Abolished Determination of depth of decarburization of steels 钢的脱碳层深度测定法 Standard Type GBT ICS 77.040.99 CCS H24 Status 废止 Issue Date 2008-08-05 Implementation 2009-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A