Aluminum strip for louver is a common base material for cap sealing, such as aluminum alloy Ropp / screw / cap. Aluminum 3105 alloy shows good drawing, formability, corrosion resistance and good surface treatment effect! 3105 aluminum strip belongs to 3000 series of aluminum manganese antirust alloy. Its strength can be improved by cold treatment. In addition, due to the addition of manganese, the strength between the louver aluminum strip welds is improved, and the tendency of cracks is greatly reduced, showing good weldability. Therefore, 3105 aluminum strip is also widely used in lamp holder, shutter, sheet metal processing workpiece, color coated aluminum strip, top plate, corrugated plate, etc., among which 3105 H24 and 3105 H18 aluminum strips are commonly used.