If the head of the screw to give with the help of nalilsya the form shown in the figure, then any attacker will not be able to turn. On such hardware it is recommended to set sensible things sailing and motor boats, hook locks.
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SIX INDEPENDENT AND DRIVE
The Rover, shown in the photo, the original was made in a caterpillar form, and then converted into a four-wheel drive wheel, which for many years is in operation. Each of the six...
FORMWORK — STRUBTSINKU
When the need arises to make a concrete column or some other vertical structural element, for fastening the boards of a timbering used a variety of means at hand: wire, nails, all kinds...
