A simple device for carrying a wide sheet materials are easy to make yourself, having at hand two, tee, four corners and three or four water pipe section.
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Mil Mi-1
When in 1947 the head of the laboratory helicopteros Department of TSAGI Mikhail mil proposed for consideration of the interdepartmental Commission on development of the helicopter in...
FOR ANY RADIUS
Comfortable and high-performance tool — the jigsaw is much easier and straight and curved sawing of wooden workpieces. Simple Supplement thereto, proposed by the Hungarian magazine...
