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Domestic falls from ladders enhanced 62% amongst 1992 and 2002, with 48,000 persons being injured inside of this serious way in 2002. These statistics recommend that folks are unaware of important suggestions for that harmless utilization of ladders.
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If you are susceptible to dizzy spells at substantial heights usually do not climb a ladder. In no way use a ladder in a greater wind or electrical storm.

2016年7月18日 (月) 13:00時点における版

If you are susceptible to dizzy spells at substantial heights usually do not climb a ladder. In no way use a ladder in a greater wind or electrical storm.