A professional manufacturer and supplier of prefabricated steel buildings and Rolling Forming Machine, Forming Machine, Cold Roll Forming Machine in China, Yingkou Sanxing Steel Structure Project Company Ltd. was founded in 1992. We have a much experience in producing superior roll forming machine with great efficiency and highly accuracy. Our products can produce steel pieces used in roof panels and wall panels, for example, and they are all environmentally friendly. We produce a wide variety of products, such as our K span roll forming ma...