Home / Standards / GB/T 33921-2017 GB/T 33921-2017 Active Underground rubber-tyred mining machines—Performance requirements and test procedures for brake systems 地下轮胎式采矿车辆 制动系统的性能要求和试验方法 Standard Type GBT ICS 73.100.01 CCS D90 Status 现行 Issue Date 2017-07-12 Implementation 2018-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A