撞扁是因为外壳和钢板之间有一层缓冲层的因素吧。有些车似乎是带有硬质泡沫塑料层。

来源: needtime 于 2015-10-01 06:26:46 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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