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Faulty, damaged or even bent ladders have the impact of a massive proportion of the accidents that come about when working at elevation.
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Let's appear at the A-frame ladder for instance. This type of ladder is known as to become one the most standard models. It really is termed the A-Frame ladder due to its letter A form.

2016年7月18日 (月) 07:21時点における版

Let's appear at the A-frame ladder for instance. This type of ladder is known as to become one the most standard models. It really is termed the A-Frame ladder due to its letter A form.