Unverified50% confidenceDecision RuleTime unknown

机用缠绕膜厚度通常17-23微米、拉伸率可达250%-300%，手用缠绕膜厚度15-25微米、拉伸率150%-200%，家庭搬家和小件打包选手用膜即可，切勿买机用膜（需机器张力才能正常拉伸）

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拉伸缠绕膜category

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