High efficiency particulate air (HEPA) filters and ultra-low particulate air (ULPA) filters are air filters designed to trap a vast majority of very small particulate contaminants from an air stream.
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Posted: 3/23/17 in Manufacturing
I am working at a company manufacturing knives using SS420-J2 grade material. After stamping knife blades, we do heat treatment of the same before gri...
Posted: 3/26/17 in Electrical Engineering
Is it necessary to unplug the power cord of a laptop if battery is fully charged? As my observation and my peer's, unplugging the power cord when the...
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