What if you need to draw a circle, and a compass at hand is not! To get out of this situation by making a simple compass of the bent and strapped to the pencil in the right place for a stylus pen, as shown in the figure.
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For those who often have to go up and down with the bike on the stairs, might want a special handle for carrying. It is made of metal tube 18...25 mm and is fixed by welding or clamps to...
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Of all the plumbing tools in the "conservative" design remained still, probably only a hammer. However, the innovators of the production Association Zhdanovtyazhmash found the...
