Home / Standards / GB/T 20340-2006 GB/T 20340-2006 Abolished Agricultural machinery - Agricultural trailers and trailed equipment - Drawbar jacks 农业机械 农业挂车和被牵引设备 牵引杆千斤顶 Standard Type GBT ICS 65.060.01 CCS B90 Status 废止 Issue Date 2006-07-19 Implementation 2007-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会