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What does HEPA mean and where did it come from? HEPA, which stands for High Efficiency Particulate Air, is a designation used to describe filters that are able to trap 99.97 percent of particles that are 0.3 microns. Though the HEPA standard and…
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Clutch plate is a kind of composite material with friction as its main function and structural performance requirements. Automobile friction materials are mainly used to manufacture brake friction plates and clutch plates. These friction materials are…
