Home / Standards / GB/T 30019-2013 GB/T 30019-2013 Active Carbon fiber - Determination of density 碳纤维 密度的测定 Standard Type GBT ICS 83.120 CCS Q23 Status 现行 Issue Date 2013-09-27 Implementation 2014-08-01 Responsible Dept 国家标准委 Drafting Unit N/A