PET plastic or PETE, also known as polyethylene terephthalate, is the most common thermoplastic polymer in the world. In the textile industry, the commercial name of this material is "polyester". This is a natural semi-crystalline transparent plastic, used as a moisture-proof layer for fiber clothin
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2. The basic quality requirements of flexible packaging.(1) BagNo obvious wrinkles, scratches, air bubbles should be applied to the bag. The color of the bag should be uniform. The sealing of the bag should be firm, and there should be no openings, perforations, or leakage (paste). The composite bag
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Cosmetics are a must-have for women, so you must pay attention to cosmetic plastic bottles. Because they are must-haves, you will bring one or two cosmetics wherever you go. There are some relatively large brands in the market. We can find that, They buy a set of products, such as cosmetic cakes, a
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