Home / Standards / GB/T 6960.4-2007 GB/T 6960.4-2007 Active Tractor terminology - Part 4: Running gears and undercarriages 拖拉机术语 第4部分：行走系 Standard Type GBT ICS 65.060.10 CCS T60 Status 现行 Issue Date 2007-03-21 Implementation 2007-08-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会