Our company was estabishde in 1994with the name of Donying haixin metal product Co, *****, it was renamed into dongying zhengda metal product Co, .Ltd in 2001, At the very beginning , we mainly do machining parts.with the development, the company hase grown into an intergration of precision cating, machining , metal surface treatment. We specialize in casting and machining of stainless steel, carbon steel, alloy steeland nonferrous ***** are fuour series, such as pipe fitting , cnstrction hardware and machining ***** products are exposed to USA, Spain, Germany, Japan, South korea, Taiwan etc. The company has advanced technology and an experienced working team .we can provide process service from design, investment casting, machining to surface treatment according to the drawing, samples or customer’s requirements . We wholeheatedly welcome the domestic and oversea customers to visit and cooperate with us.we will serve you with high qulity and effeciency