Home / Standards / GB/T 13881-2019 GB/T 13881-2019 Active Road vehicles—Pneumatic braking connections between towing vehicles and trailers 道路车辆 牵引车与挂车之间气制动管连接器 Standard Type GBT ICS 43.040.40 CCS T74 Status 现行 Issue Date 2019-10-18 Implementation 2020-05-01 Responsible Dept 工业和信息化部 Drafting Unit N/A