A thermoplastic resin domestic production is mainly of polypropylene (PP), polypropylene (PP) prepared by the polymerization of propylene. First of recycled material is forming in scrap or other sources of waste, after appropriate treatment and make the material again for the lower manufacturing quality products. The original raw material is a combination of new material by a substance once generated. Uehara raw material price of recycled materials is usually 2-3 times, but I do not want to use the native woven materials. Woven bags in application fisheries mainly in fish bag, fish bags fish suggests that it is loaded color hand woven bags, woven bags fishermen have been well applied to the various aspects of transportation and other fisheries. IV bags on the application of animal husbandry bags used in the livestock sector is mainly reflected in the feed bags, with the reduction of pastures, the majority of farmers are woven by hand from the feed, chicken, duck, fish, cattle, sheep, pigs, etc. are inseparable aquaculture feed, feed packaging is called feed bags. The amount of feed bags market is very large, woven density requirements for feed bags is very high, very thick woven. Woven inner bag (3) there was isotactic, syndiotactic and atactic material was three configurations, industrial products as a main component was isotactic polypropylene also includes a small amount of propylene and ethylene into account. Generally translucent colorless solid, odorless, non-toxic, is the lightest of the common plastic. corrosion resistance, tensile strength of 30MPa, strength, rigidity and transparency better than polyethylene. The disadvantage is poor low temperature impact resistance Hebei laptop bags, representing easy to aging through the stretch of PVC film study found that production and new technology cutting filaments split fibers. 50s, O · B · Rasmussen, through research, the use of stretch film extrusion method and equipment, began producing knitting fibers. By 1965, Europe began the industrial production of the one-way stretch flat yarn wholesale laptop bags, for the production of industrial packaging bags. Xiong Xin Yu plastic bags factory strict product quality, professional quality team, our customers can buy. Portable plastic bags | Xin Yu Package (certified) | hand woven by Xiong Yu Xin plastic packaging plant. Xiong Yu Xin plastic packaging plant (www.xinyusl.com) (www.xinyusl.com) Hebei Baoding, composite materials packaging products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. Yu Xin leader in packaging with the staff warmly welcome all inquiries negotiations to create Xin Yu packaging better future.