Home / Standards / GB/T 5921-2015 GB/T 5921-2015 Active Motor vehicles and towed vehicles—Air braking systems—Identification of connections on units 汽车和挂车 气压制动系 部件上接口的识别标记 Standard Type GBT ICS 43.040.40 CCS T24 Status 现行 Issue Date 2015-09-11 Implementation 2016-01-01 Responsible Dept 工业和信息化部 Drafting Unit N/A