... 250 roll forming machine 1.Brief introduction: 1.Usage: GW250XG cold-bending forming machine is used to produce the light weight steel keel, light weight steel joist ... .(4)Straightening: Turkey head type, one side 4 roll, used to do straightening of section bar. The unit could rotate 360º, movable ... together with the on line car, signal sent out, then section bar cut, dropped into collection table