Home / Standards / GB/T 28772-2012 GB/T 28772-2012 Active Classification of internal combustion engine oils 内燃机油分类 Standard Type GBT ICS 75.100 CCS E30 Status 现行 Issue Date 2012-11-05 Implementation 2013-03-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委