Home / Standards / GB/T 7631.6-1989 GB/T 7631.6-1989 Active Lubricants and related products (class L)--Classification--Part 6:Family R (Temporary protection against corrosion) 润滑剂和有关产品(L类)的分类 第6 部分:R组 (暂时保护防腐蚀) Standard Type GBT ICS 75.100 CCS E30 Status 现行 Issue Date 1989-03-31 Implementation 1990-04-01 Responsible Dept 国家标准委 Drafting Unit N/A