Botou Huikeyuan Engineering Control Co.,Ltd is one of the best large span no-girder roll forming machine manufacturers,Website: , welcome to import our large span no-girder roll forming machine made in China and check the price with us.●Product description Large Span No-Girder Roll Forming Machine uses the color steel as the material, can produce the special shaped section, large span arched material, this structure is without the traditional roof building beam column, frame and other load bearing parts. The profile can be used for building the arched roof panel for the large venue( span 10-34m). ●Application Large span color steel no-girder roll forming machine is mainly used to build stadiums, exhibition hall, cinema, theatre, grain storage, distributed greenhouse, industrial plants, tourism facilities, bazaars, entertainment venues, and other large span arched roof.