Home / Standards / GB/T 9139-2008 GB/T 9139-2008 Abolished Hydraulic excavators - Technical specifications 液压挖掘机 技术条件 Standard Type GBT ICS 53.100 CCS P97 Status 废止 Issue Date 2008-08-26 Implementation 2009-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A