皮革的化学成分PVC和PU皮革的材质
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![皮革的化学成分PVC和PU皮革的材质](/uploads/image/z/2142552-48-2.jpg?t=%E7%9A%AE%E9%9D%A9%E7%9A%84%E5%8C%96%E5%AD%A6%E6%88%90%E5%88%86PVC%E5%92%8CPU%E7%9A%AE%E9%9D%A9%E7%9A%84%E6%9D%90%E8%B4%A8)
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