... , etc. Our types as follows:MD / MDF / MDT / MDS / MDK series used in grinding bore diameter, outer diameter, broach, thread, etc ... , drilling/milling/chipping machining for printed circuit board, fuel pump and nozzle, etc.ED series used in high speed centrifugation field such as ... in cutting machine, testing machine, driving, etc that special design for customers requirement. High-frequency spindles