100分急问包装12瓶装矿泉水外面热缩膜是用什么材料适用且成本最低?100分急问包装12瓶装矿泉水外面热缩膜是用什么材料适用且成本最低,小弟搞不清楚POF PVC PE三种材料,我们是想找包装类似

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