Gaomi Gongji Precision Casting Co., Ltd is a leading manufacturer, supplier and exporter of all industrial hardware and investment castings in Qingdao city, Shandong Province of China. Gongji casting has a very professional team for design, manufacturing and services. We can do tooling design and making, investment casting, heat treatment, CNC machining, electro-polishing, vibratory finishing, hand staining, mirror polishing & assembling and others The materials we use can be stainless steel, carbon steel, and other alloy steel series depending on the customers&＃039; requirements. Gongji is dedicated to supplying you with excellent quality and service. Quality are guaranteed. In the last 10 years, our skilled people have been developing and manufacturing more than 1500 kinds of investment casting components. High quality and excellent services help us gain a very good reputation from our customers all over the world. We warmly welcome all the friends from all over the world to visit us for business co-operation.