Our company was established in 1994 with the name of Dongying Haixin Metal Product Co., Ltd. Then, it was renamed into Dongying Zhengda Metal Product Co. , Ltd in 2001. At the very beginning, we mainly do machining parts. With the continual development, the company has grown into an integration of precision casting, machining, metal surface treatment. We specialize in casting and machining of stainless steel, carbon steel, alloy steel and non-ferrous metal. There are four series, such as pipe fitting, construction hardware, marine hardware and machining parts. Our products are exported 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 drawings, samples or customer&＃039;s special requirements. We Whole heartedly welcome the domestic and oversea customers to visit and cooperate with us. We will serve you with high quality and efficiency.