Home / Standards / GB/T 7031-1986 GB/T 7031-1986 Abolished Vehicle vibration--Describing method for road surface irregularity 车辆振动输入 路面平度表示方法 Standard Type GBT ICS 43.020 CCS T04 Status 废止 Issue Date 1986-11-25 Implementation 1987-10-01 Responsible Dept N/A Drafting Unit N/A