1.Material:color,Zincalume,Zinc 2.color:any color for the customer 3.Thickness:0.25mm-1.0mm Cold rolled steel plates1) Roll formed by roll forming machines, the thickness and color can be different2) They are widely use as wall sheet or roof sheet of factory, warehouse, garage, exhibition center and cinema3) materials: Cold-rolled steel, galvanized steel, galvanized pre-painted sheet and aluminum ...