When processing large surfaces of metal or wood, each master uses to fasten sandpaper to any device. One of the simplest: a piece of wood, girded with a rubber ring This method is convenient because it allows you to quickly change the exhaust a strip of abrasive material by a new one.
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Associate Professor of the Department "Technology of mechanical engineering" of the Mari state technical University M. L. Popov, having a great experience with Bicycle sport, sent a...
