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怎么认证SM级别润滑油?大家又该怎么去判断国外的润滑油认证标准?这些问题也逐渐出现在了读者提问当中。所以,这一期我们专门请到了嘉实多中国的技术专家来为我们解答这些问题。
How to authenticate the SM level of lubricants? How to determine the foreign oil certification standards? These problems are also gradually appear in the reader questions. Therefore, this issue we have specially invited Castrol China technical experts to answer these questions for us.