Zhengzhou Dafang Bridge-Machine Co., Ltd. is a high-tech & innovative enterprise specializing in designing and making heavy engineering & machinery. With technical innovation, our company has successfully designed & manufactured a series of important engineering construction & fabrication equipment with independent intellectual property rights in the fields of express highway, railway express, hydraulic engineering, magnetic suspension expressway, shipyard, harbor construction, and military engineering. We have attained more than 20 national patents, created over 10 Chinese first products,...