Home / Standards / GB/T 41043-2021 GB/T 41043-2021 Active Coordinative development effectiveness evaluation indicator and method of coal and coalbed methane 煤与煤层气协调开发效果评价指标及计算方法 Standard Type GBT ICS 73.020 CCS D15 Status 现行 Issue Date 2021-12-31 Implementation 2022-07-01 Responsible Dept 中国煤炭工业协会 Drafting Unit N/A