CNC machine ballscrew support unit 1.kinds of types:EF,EK,BK, ... ,FK,FF... 2.good quality,competitive price 3.rich stock CNC machine ballscrew support unitKinds of types:EF,EK,BK,BF,FK ... , precision measurement equipment, robots etc. Features:1.Complete sliding unit system with high accuracy and can be moved smoothly without deflection ...