There are also ladders made out of wood which are quite strong they were used in world war two. Step ladders are made out of metal so they are very very strong.
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Use step platforms, NGO says after Hong Kong worker dies following fall from wooden ladderA Hong Kong labour group has called workers to use step platforms after a worker died following a fall from a wooden ladder. The 58-year-old male worker fell from a wooden ladder while installing ...
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