... has been established in 1995 as a professional manufacturers of ROLL FORMING MALCHINE. We use AUTO CAD design software. With ... Standard. We are the leading manufacturer and reported of roll forming machine in China. We manufacture various kinds of ... & Z Purlin, Highway Guardrail, Sandwich Panel, Container Board, Car Panel, Roll Shutter Door, Downspout, Decorated gusset, Steel Pipe...etc.Our products ...