Home / Standards / GB/T 4652-2021 GB/T 4652-2021 Active Loader for underground mining—Testing method 地下矿用装岩机和装载机 试验方法 Standard Type GBT ICS 73.100.10 CCS D92 Status 现行 Issue Date 2021-10-11 Implementation 2022-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A