Luoyang Dongheng Precision Machinery Co., Ltd. is a professional machine tool spindle factory, as well as ZYS brand OEM, the company has accumulated years of experience, professional assembly and the detection technology. The key parts are made of imported materials, and a complete processing system, strict process control for each processing step, in order to more stable product quality, meet customer requirements. You are welcome to inquire. Website www.lydhjm.com telephone 13683793822 Sun