If you find any ball bearings wrong, please replace it with new ball bearing. Higher grade ABEC ball bearings do little, and normal grade is enough.
如果你发现有任何轴承坏了，请重新换上好的轴承，最好是用高等级的ABEC轴承，一般等级的轴承也足够了。
Since our inception, ABEC has been the industry leader in the design, engineering and manufacture of high quality custom Bioreactors and Fermenters.
自从公司成立以来，ABEC就已经成为设计和生产高质量的专业生物反应器和发酵罐的工业领先企业。
Since our inception, ABEC has been the industry leader in the design, engineering and manufacture of high quality custom Bioreactors and Fermenters.
自从公司成立以来，ABEC就已经成为设计和生产高质量的专业生物反应器和发酵罐的工业领先企业。
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