your home depot ladder is 250-300lbs load. Fire ladders are

来源: borisg 于 2022-06-05 09:44:48 [档案] [博客] [旧帖] [给我悄悄话] 阅读数 : (17 bytes)

回答: ok，how about comparing weights based on same height？由 gossipgirl8 于 2022-06-05 08:39:10

500lbs

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