Used ton bag prices, Tiande packaging (certified), used tons of bags provided by Pingxiang City Tiande packaging materials Limited. Pingxiang City Tiande Packaging Materials Co., Ltd. (www.tdbzcl.com) is specialized in "bags, ton bags, container bags, color bags, paper-plastic bags, used tons of bags, woven ring" of the enterprise, the company adhering to the "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: U Saw park. Polypropylene (PP) prepared by the polymerization of propylene and a thermoplastic resin is obtained. There was an isotactic, syndiotactic and atactic material was three configurations, isotactic industrial products as a main component thereof. Polypropylene also includes a small amount of propylene and copolymers, including ethylene. Usually translucent colorless solid, odorless, non-toxic. Because of the structure of regular and highly crystallized, so the melting point of up to 167 ℃, heat, steam sterilization products available is its outstanding advantages. Density of 0.90g / cm3, is the lightest common plastic. Used tons of bags sold corrosion resistance, tensile strength 30MPa, strength, rigidity and transparency better than polyethylene. The disadvantage is poor low temperature impact resistance used tons of bags Which is better, easier to aging, but can be overcome, respectively, by adding antioxidants and modified. Bags color is generally white or gray Used tons of bags, non-toxic, tasteless, human bodily injury is generally small, although it is manufactured by a variety of chemical plastic made, but its strong environmental protection and recycling larger effort; 20th Century 1930s, H · Jaeque through the film stretching study found that the production of PVC cut filaments and new technologies split film fibers. 1950s Nanchang Used ton bag, O · B · Rasmussen, through research, the use of stretch film extrusion methods and equipment to begin production of woven fibers. By 1965, Europe began industrial production uniaxial tensile flat, for the production of industrial packaging bags. China since 1966 has developed a flat yarn woven products are developing rapidly, has formed a diverse assortment, size range of products, variety and quality has reached the level of similar foreign products, with a certain competitiveness in the international market. Ordinary bags Specifications: 30cm-120cm wide, unlimited length, can ordinary printing, color printing.