Neosun Architecture & Marine Hardware Manufacturing Ltd. is a leading manufacturer, supplier and exporter of all industrial hardware and investment castings in ferrous and non-ferrous alloy in Dongying city, Shandong Province of China. Neosun 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. ...