Dongying Changhui Precision Metal Co., Ltd. is an integrative supplyer in mould design , investment casting , polising and precision machining. We are specialized in the products made of stainless steel, carbon steel, alloy steel ect. We have the first class instruments and high technology .Our main products are marine hardware, building hardware, machine parts , valve series, pipe fittings, ect . being sold to oversea market such as America, Europe, Japan, korea and so on . Dongying Changhui Precision Metal Co., Ltd is located in Dongying , Shandong Province . It takes three hours from Dongying to Qingdao port which is well known as a beautiful internationalized port city. The transportation is very convenient