有没有什么固体材料热胀冷缩明显的
看到几个视频刷到热缩片，很好奇有没有别的材料热胀冷缩或者热缩冷胀明显的，最好是可以反复的那种，感觉用来做二创或者工艺品很好用，希望各位大神解答https://gsp0.baidu.com/5aAHeD3nKhI2p27j8IqW0jdnxx1xbK/tb/editor/images/client/image_emoticon1.pnghttps://gsp0.baidu.com/5aAHeD3nKhI2p27j8IqW0jdnxx1xbK/tb/editor/images/client/image_emoticon1.pnghttps://gsp0.baidu.com/5aAHeD3nKhI2p27j8IqW0jdnxx1xbK/tb/editor/images/client/image_emoticon1.png
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