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Webb12 apr. 2024 · Nuts and bolts are two types of fasteners used to join two parts together.. A nut is a small metal object with a hole in the center surrounded by spirally cut grooves … Webb27 feb. 2024 · We use the M2 screw in small items, such as electrical equipment, cameras, and mobile phones. They’re also common in laptops and the like. The “M” corresponds to … how to stop sewage backup
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