Weifang Yinuo Casting Co., Ltd started casting industry from 1990’s, and developed to a large high-tech enterprise specialized in development, creation, casting, production and painting of ductile iron grooved fittings after 2001. The company locates in Weifang of Shandong Province, China, with convenient transportation closed to Qingdao Port. With the fast development, the factory and supporting facilities now covers more than 30000㎡, the annual production capacity is well above 30,000 tons, and there are more than 200 employees, among which there are 10 engineering technicians and 5 senior engineers.