Home / Standards / GB/T 21155-2015 GB/T 21155-2015 Active Earth-moving machinery—Machine-mounted audible travel alarms and forward horns—Test methods and performance criteria 土方机械 行车声响报警装置和前方喇叭 试验方法和性能准则 Standard Type GBT ICS 53.100 CCS P97 Status 现行 Issue Date 2015-10-09 Implementation 2016-06-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A