If you have an old inflatable mattress, consisting of several independent sections, it is easy to adapt as life jacket for boating. You will have to sacrifice one of the middle sections, making it T-shaped hole for threading of the head. To fix the other slightly inflated section around the torso using the waist belt and extra lacing.
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AND THE CURVE OF THE
The starter on cars IZH 412, M-2140 and their modifications is attached by only two nuts, but they are very difficult to reach not only the usual key, but the mechanical head. So we need...