... bronze.ect We are able to provide aluminum extrusion(aluminum profile) with different surface treatment ... aluminum itself,with a natural anodic layer formed in the air,week corrosion resistanceAnodizingThrough an eletrical process to ... profile,available in different colors,including silver,champagne,bronze,dark,golden,etcEletropharesisBase on anodized process,an extra transparent film is formed to make ...