Home / Standards / GB/T 31090-2014 GB/T 31090-2014 Active Diesel component from direct coal liquefaction 煤炭直接液化柴油组分油 Standard Type GBT ICS 75.160.20 CCS E31 Status 现行 Issue Date 2014-12-22 Implementation 2015-06-01 Responsible Dept 国家标准委 Drafting Unit N/A