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 Polyethylene has excellent chemical stability, resistance to hydrochloric acid, hydrofluoric acid, phosphoric acid, formic acid, at room temperature, an amine, sodium hydroxide, potassium hydroxide, etc. damaging effects of nitric acid and sulfuric acid of various chemical substances have a strong polyethylene; 2 is easy to photooxidation of polyethylene, thermal oxidation, ozonolysis, to degradation under the action of ultraviolet light, carbon black, polyethylene has excellent light shielding effect. That can occur after radiation crosslinking, chain scission, the formation of unsaturated groups, such as the invisible zipper bags generally reflect a composite flexible packaging, made of polypropylene OPP, polyester PET pe zipper bag manufacturers, nylon, matte film, foil, cast polypropylene, polyethylene, kraft paper bags and other materials or a combination of (usually 2--4 layer). File zipper bag can be loaded more documents, pens and small items. Unique selection of hardy PVC double-like material, the material has good flexibility. Invisible zipper bag usually plastic composite bag, is a set of advantages in a variety of packaging packaging products, lower costs, beautifully printed; This product has: Anti-static pe zipper bag production, UV, moisture and oxygen barrier blackout pe zipper bags, cold oil temperature, fresh oxygen barrier Yi Feng and other characteristics proof and waterproof, suitable for learning, living at home travel use. Invisible zipper bag is generally flexible packaging pe zipper bag factory, a combination of polypropylene OPP, polyester PET, nylon, matte film, foil, cast polypropylene, polyethylene, kraft paper bags and other materials even made (usually 2 --4 layer). Eternal plastic zipper bag factory _pe _pe provided by the eternal plastic zipper bag. Search for "fishing tackle bag hook bag stretch film bag garment bag jewelry bag" reliable suppliers, network operators choose to have a full alliance Certified: Xiong eternal plastic packaging plant (www.yonghengsy.com), trustworthiness and reliability, now "Commercial Union Service" page click on the live chat with us now!