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早在20世纪70年代,美国卡特彼勒公司推出的世界领先的定期油样测试系统就在工程机械行业引起了很大的反响。从此,S．O．S(Scheduled Oil Sampling)定期油样测试就逐渐成为减少工程机械运营成本的一个重要工具,在西方国家得到了广泛应用。长期以来,工程机械的维修与保养对所有用户来说都是一笔很大的投资。据统
As early as the 1970s, the world’s leading periodic oil sample testing system introduced by Caterpillar of the United States has aroused great repercussions in the construction machinery industry. Since then, S. O. S Scheduled Oil Sampling Periodic oil sampling has gradually become an important tool to reduce the operating costs of construction machinery and has been widely used in western countries. For a long time, construction machinery repair and maintenance for all users are a great investment. According to the system