Treasure sinks attached to the green ring in Henan province of precious metals recycling and utilizing renewable resources limited, the company specializing in the recycling of precious metals and precious metal processing, located in green city of Zhengzhou, distance of Lian-Huo Expressway, Beijing-Zhuhai Expressway, Beijing-Guangzhou Expressway, shaolinsi Expressway, 107 national highway, far less than 20 km, the traffic is very convenient. Company is mainly engaged in recycling precious metals refining and precious metals and their alloys, precious metals heterogeneous and homogeneous catalysts, precious metals and complexes of pharmaceutical, electronic pastes of precious metals and other precious metals research and development, production and sales of high-tech materials. Company laboratory configuration fire tries gold, atomic absorption, high-precision balances, chemical analysis and other detection equipment, raw materials, finished products and production processes can be controlled for accurate detection.