The company is established workers, trade in one, focusing on technology and development, management-oriented paint materials recycling, innovative and enterprising spirit, and constantly improve the market competitiveness of raw material price recovery products, expand their business team, integrity recycled materials, the customer groups dye materials recycling, has a high good evaluation, it has become a wholly owned engineering plastic materials processing plants, for cooperative enterprises, vendors offer adequate supply assurance. Plastic PA (nylon) and temperature model can use a variety of knowledge after acid hydrolysis to generate polyamic acid to distinguish between different polyamides. The 5 g sample sample with 50 ml of concentrated hydrochloric acid was heated at reflux condensing flask. Most specimens reflux until dissolved. Activated carbon was then added, and the solution was heated to boiling until the color ah color disappeared. Hot filtered. After cooling, the acid will be precipitated, filtered, and recrystallized from a small amount of water to make it. Resin material recycling, renewable resources East in mind (certified), raw materials recovered from Dongguan Chang Ping Tung Kee provide renewable resource recycling. Dongguan Chang Ping Tung Kee renewable resource recycling (www.dongji8.com) is Dongguan, Guangdong, scrap recycling leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Renewable resources in the East in mind the leadership of the staff warmly welcome all inquiries negotiations to create the East in mind a better future for renewable resources.