As we all know, plastic packaging bags are generally printed on various plastic films, then combined with barrier layers and heat-sealing layers to form a composite film, which is slit and bag-made to form packaging products. Among them
Read MoreWhen I go to the market to buy vegetables, I sometimes encounter this kind of embarrassment. The plastic packaging bag in my hand suddenly leaks. It was good when I first took it. Why did it suddenly leak? In fact, this is related to the peel strength.
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