Home / Standards / GB/T 1426-2008 GB/T 1426-2008 Active The classifications of carbon materials 炭素材料分类 Standard Type GBT ICS 59.100;29.050 CCS Q50 Status 现行 Issue Date 2008-08-05 Implementation 2009-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A