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Concerning the PROCAT 18ft (5.
+
Even a Phase Ladder can be risky if very good sense is not utilized. There are 160,000 documented accidents each and every 12 months from ladders, many would be simply because of insufficient safety and security measures.

2016年7月24日 (日) 02:59時点における版

Even a Phase Ladder can be risky if very good sense is not utilized. There are 160,000 documented accidents each and every 12 months from ladders, many would be simply because of insufficient safety and security measures.