Home / Standards / GB/T 29723.5-2019 GB/T 29723.5-2019 Active Grade and limit of major process energy consumption for coal mine—Part 5: Main elevating system 煤矿主要工序能耗等级和限值 第5部分:主提升系统 Standard Type GBT ICS 27.010 CCS D98 Status 现行 Issue Date 2019-06-04 Implementation 2020-01-01 Responsible Dept 中国煤炭工业协会 Drafting Unit N/A