Shenzhen Tianyuan Surface Technology Development Co., Ltd. (days source) is a surface coating materials, technologies and R & D Enterprises: Days source to surface engineering, coating materials and new energy development in their area of research, products widely used in various universities and high-tech fields of business, the company through years of basic and applied research and new product development, has formed its own independent intellectual property rights of technology and products, while the company also has a high-quality R & D, Production, management and sales force, a number of institutions at home and abroad, research institutes, enterprises and cooperative relations. Company is mainly engaged in surface treatment, vacuum coating.