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This product is an improvement which is for escape soft ladder.In real life,escape soft ladder which used in the fire, brings easily accident that can threaen your life, because the sway of it is too large.People who is terrified of heights use the escape soft ladder in a tense atmosphere, which will lead inincreasing the probability of such accidents.In response to these security issues, we design a folding ladder of fast lifting which makes use of gravity of people to close the wall to remian steady.
Shandong University Of Art&Design