... frame, rack, stud & track, c/z/u purlin, etc Light Steel Keel Roll Forming Machine The machine is used to manufacture coil ... cabinet column, guardrail plate, etc. It can form galvanized steel, stainless steel, aluminum sheet, etc.Components It mainly includes uncoiler, main ... roll forming--> hole punching (optional) --> calibrating--> automatic cutting --> output Light Steel Keel Roll Forming Machine