In winter, urban courtyards and suburban areas for cleaning lanes of freshly fallen snow is often used homemade wide shovel of sheet metal: they work easily and conveniently thanks to the large grip loose snow layer. However, if you rake in a lot at once — the sheet is bent, and the snow with it around the edges references. This doesn’t happen — is only a side edge of the sheet slightly bend. Here “kill” two “hare”: the snow ceases to sciatica, and the sheet acquires the necessary rigidity.
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