Shanghai Duwell Industrial Co. Ltd is one of the leading roll forming machine manufacturers in China. Since Its foundation of 2005, DUWELL has devoted itself to the research of high quality products for nearly 20 years. With the rich experience and sophisticate technology, DUWELL gained high reputations from the customers all over the world. The machines produced by DUWELL are widely approved in door and window industry, steel structure industry, vehicle industry, decorating and fitting material industry, physical distribution and supermarket shelf industry, transportation industry, wiring industry, electrical equipment industry, elevator industry and various projects with pipe industry.