Home / Standards / GB/T 31392-2022 GB/T 31392-2022 Active Technical guidance for the utilization of coal mine water 煤矿矿井水利用技术导则 Standard Type GBT ICS 13.020.01 CCS D04 Status 现行 Issue Date 2022-12-30 Implementation 2023-04-01 Responsible Dept 中国煤炭工业协会 Drafting Unit N/A