顶盖衬垫上胶
塑料或金属瓶上的盖本身不具有气密性,需要一个盖衬,胶接在盖的内表面,防止液体从包装漏出,同时也防止空气进入。此过程利用高速胶点涂,将盖衬与塑料盖粘结在一起。

塑料或金属瓶上的盖本身不具有气密性,需要一个盖衬,胶接在盖的内表面,防止液体从包装漏出,同时也防止空气进入。此过程利用高速胶点涂,将盖衬与塑料盖粘结在一起。
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