Home / Standards / GB/T 18702-2002 GB/T 18702-2002 Active Determination of angle of repose of coal 煤炭安息角测定方法 Standard Type GBT ICS 73.040 CCS D27 Status 现行 Issue Date 2002-04-09 Implementation 2002-10-01 Responsible Dept 中国煤炭工业协会 Drafting Unit N/A