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Some telescopic ladders, like the Xtend & Climb 785P, are retracting versions of the conventional expansion ladder and withdraw inside of themselves for tiny storage area and quick transport.
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Most accidents involving functioning in height and on ladders can also be avoided as lots of are due to both improper use or poorly sited ladders that both slip click or fall.

2016年7月19日 (火) 03:43時点における版

Most accidents involving functioning in height and on ladders can also be avoided as lots of are due to both improper use or poorly sited ladders that both slip click or fall.

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