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'Classification'
China GB Standards List

 SB/T 10820-2012  
Rural commercial store and enterprise Classification

农村商业店铺和商业企业等级划分规范
 GB/T 7631.13-2012  
Lubricants,industrial oils and related products(class L) - Classification - Part 13: Family A(Total loss systems)

润滑剂、工业用油和有关产品(L类)的分类 第13部分:A组(全损耗系统)

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