Yingkou Changsheng Steel Structure Project Co.Ltd is a professional manufacturer and supplier of roll forming machine in China. With 5 million registered capital, Changsheng Company produces various kinds of products, such as arch roof forming machines (ultimate building machine, automatic building machine), no-girder automatic building machines (automatic building machine), special metal forming equipment and auxiliary equipment and products. Additionally, we also supply OEM service. Founded in 1990, with 20 years of experience, Changsheng Steel Structure Project Co.Ltd is good at machine design and manufacture. We have ability to produce all types of roll forming machines, like ultimate building machines and automatic building machine. Some of these products can produce steel constructions used for making the roof panels and wall panels. Even, all the products are environmental-friendly. Yingkou Changsheng Steel Structure Project Co.Ltd has a lot of experience to produce superior roll forming machinery. So the roll forming machines produced by us are great efficient and highly accurate.