... CNC Router 1 Square linear guide Rail 2 Stepper system (Option: servo system) 3 CE certificate High quality BD1224 marble CNC Router/cnc ... , fast speed and strong power.4,Imported square linear guide rail ensures high accuracy , maximum work load and long service time.5 ... , 12.73.175, 6, 12.73.175, 6, 12.7XYZ Guide RailsLinear Square RailLinear Square RailLinear Square RailTransmissionRack Gear of X ...