Zhengzhou Hejin Metal Material Co., Ltd. is situated in Zhengzhou which called aluminum center, Henan Province in China. We are a professional manufacturer engaged in composite materials with patent technology. We have contracted alliances with some research institutions such as Zhengzhou Light Metal Research Institute as well as profession colleges such as Henan University of Science and Technology (HUST). The transportation here is also highly developed. The advantage of our production is ...