... and fixed quantity•Hardend and ground C3 Doubel Nut screw are pre-tensioned to minimize backlash,provide high precision ... 450 control ,Heat exchanger for electrical cabinet,double screw type chip conveyors,chain type chip conveyor,working lamp,End of program light ... . Optional equipment:Fanuc control,32 station chain type tool changer,Gerar type spindle with spidnle oil cooler,linear scale,Manual ...