C-shaped purlin is good in bending resistance, straightness, and it can cut, punch automatically, it is very easy and convenient to use. It can be used as bearing structure in big and medium sized building, such as factories, warehouses, garages, hangars, gyms, exhibitions, theater and so on. Technica parameter l of product line Applied plank stuff:color armor plate Applied slab thickness:1.8mm-3.5mm Line speed:16-18m/min Roll diameter:80mm Hydraulic automatic uncoile Dimension:11.5m*1.9m*1.4m Weight:5t Power:4kw Hydraulic station power:4kw Processing flow: decoiling----loading----molding----cutting----off-discharging