Home / Standards / GB/T 33445-2023 GB/T 33445-2023 Active Coal-based synthetic natural gas 煤制合成天然气 Standard Type GBT ICS 71.080.01 CCS G16 Status 现行 Issue Date 2023-03-17 Implementation 2023-07-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A