Home / Standards / GB/T 21153-2007 GB/T 21153-2007 Active Earth-moving machinery - Units for dimensions, performance and capacities, and their measurement accuracies 土方机械 尺寸、性能和参数的单位与测量准确度 Standard Type GBT ICS 53.100 CCS P97 Status 现行 Issue Date 2007-11-01 Implementation 2008-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A