Home / Standards / GB/T 9649.17 GB/T 9649.17 Abolished The terminology classification codes ofgeology and mineral resources--Coal geology 地质矿产术语分类代码 煤地质学 Standard Type GBT ICS 35.040 CCS A24 Status 废止 Issue Date 2001-04-29 Implementation 2001-12-01 Responsible Dept 市场监管总局 Drafting Unit 市场监管总局