Zhihua is located in the beautiful international kite capital -- Weifang City is a collection of grooved elbow research and development, production, and sales of grooved pipe elbow fire fittings, valves, fire extinguishers, and other products of high-tech enterprises. The company was founded in 2007, after years of struggle, and enterprise-scale has been rapid development. At present, the company only has a construction area of more than 50,000 square meters, and the whole factory has more than 500 employees, including 50 professional and technical personnel with a bachelor's degree or above and 10 senior engineers.