Home / Standards / GB/T 2283-2008 GB/T 2283-2008 Abolished Coking benzene 焦化苯 Standard Type GBT ICS 71.080.15 CCS G18 Status 废止 Issue Date 2008-12-06 Implementation 2009-10-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A