AFA is located in Huangdao West Coast Economic Zone Tieshan Industrial Park in Qingdao City, covering an area of 25,000 square meters. It is a technology-based valve company integrating research and development, production, sales and service. It has obtained 12 patented technologies with all independent intellectual property rights. Metal sealed ball valve is its leading product, where the C-type wear-resistant ball valve fills the gaps in the domestic market. The company sets up R&D and design center, CNC machining center, CNC machine tools, and spherical thermal spraying, testing and test center, and contracted for the repair and maintenance, refit, commissioning and technical advice of imported metal sealed ball valve.