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  9. PP4 Types of Lubricants and How to Measure the Properties of Oil and Grease.
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PP4 Types of Lubricants and How to Measure the Properties of Oil and Grease.

完成条件
Please read through the PowerPoint on exploring the four basic types of lubricant used in industry and the criteria used in measuring the properties of oils and greases.
点击Unit 29.2 PP4 lubrication,chara and prop of greases and oils.ppt链接查看此文件

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