otou huayang trading co.,ltd we are a manuficaterer ,we not only produce different type of professional roll forming machine,but also developed intelligent automatic production line of roll forming machine.(roof/wall panel ,glazed tile ,c z l u w purlin forming machinfe,and floor deck ,double layer highway forming machine,bending/cutting/curving machines)we could design different type of cold roll formng machine according to clients&＃39;requirenmen.our company has matured after-salesservice network,we could provide efficient and satisfactory service for you throughout the period of our cooperation.