When you do not have a suitable spanner to Unscrew the hex-head bolt will help out any screw with two nuts — preferably square-shaped.
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Just note - it's not my idea, I offer only the version of her performance. Came across this idea in some military magazine. The conversation was about the Mat-foam: "...However, such...
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What tents are not released industry! Single and multi, winter and summer, canvas and nylon... nevertheless, tourists continue to actively develop and produce their own versions. And...