Home / Standards / GB/T 17477-2012 GB/T 17477-2012 Active Automotive gear lubricant viscosity classification 汽车齿轮润滑剂黏度分类 Standard Type GBT ICS 75.100 CCS E31 Status 现行 Issue Date 2012-11-05 Implementation 2013-03-01 Responsible Dept 国家标准委 Drafting Unit N/A