「利用者:Loftstair402910」の版間の差分

 
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Just about every year 100s are injured and several people today killed with a leaning or extendible ladder.
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Quite a few accidents take place as a result of incorrect utilization of a ladders, or people attempting to use a chair, stool or further object to work at height.

2016年7月25日 (月) 03:11時点における最新版

Quite a few accidents take place as a result of incorrect utilization of a ladders, or people attempting to use a chair, stool or further object to work at height.