Feature: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information; 2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed. 3.It fit for various types of electronic equipment / guide rod, drive shaft and prop 4.This set includes Optical Axis & Lead Screw, Pillow Block Bearing,Linear Rail Support,CNC Stepper Coupler and Linear Slide Bushing 5.Good wear resistance and strength, high accuracy, hard to rust. 6.Has good performances, low friction coefficients and long usage spans. .
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