China's plastic pipe industry has been rapid development, expanding pipeline of products from plastic pipe market has become ubiquitous products have been widely recognized as an important industry. Plastic pipe products are all aspects of attention, especially in the construction sector, the water sector, public works engineers and technicians in the field are very concerned about, understand, study plastic products. "Fifteen" period, the rapid growth of the plastic pipe industry, and promote the technological progress of the industry. Many enterprises attach great importance to the international forefront of technology, attention to the development and introduction of new products, new technologies, and in the introduction of advanced processing equipment, while PVC plastic sheet manufacturers, continue to strengthen the research and development of new products. Some large companies have their own advanced level of research and development centers, with a strong technical strength. Domestic plastic pipe industry already has 300 number of inventions, new patented technology, and some proprietary products leading position in the International Office. The gap between the technical level with the developed countries is gradually narrowing, has evolved from a simple import substitution into an international export products. Variety, structure, new materials, new technologies, new processes and patents more PVC plastic pipe plastic sheet products, various types of plastic pipe is playing to their strengths in different applications. PVC for most inorganic acids and bases are stable PVC plastic sheet, heat is not dissolved hydrogen chloride was divided explanation. Azeotroped with potassium hydroxide to obtain a brown insoluble unsaturated products. PVC solubility and molecular size and polymerization methods. Generally the solubility of the polymer with increasing molecular weight decreases, the solubility of the resin emulsion method than the difference in the resin suspension. It can be dissolved in ketones (such as methyl hexyl ketone, cyclohexanone), aromatic solvents (e.g. toluene, xylene), dimethylformamide, tetrahydrofuran. Polyvinyl chloride resin at room temperature is almost insoluble plasticizer, significant swelling at high temperatures, even to dissolve. PVC material is not easily flammable, high strength, resistance to climate variability and excellent geometric stability. PVC oxidant, reductant and acid has a very strong resistance. However, it can be concentrated oxidizing acids such as sulfuric acid, concentrated nitric acid corrosion and does not apply to contact with aromatic hydrocarbons, chlorinated hydrocarbons occasions. PVC plastic sheet manufacturers, sea Widex (certified), PVC plastic sheet provided by Qingdao Rubber Material Co., Widex. Widex Qingdao Rubber Material Co., Ltd. (www.haihuidaxiangsu.com) is Qingdao, industrial products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Widex leadership in the sea with the staff warmly welcome all inquiries negotiations to create sea Widex a better future.