AUS lug is made of copper tube, it has at least 99.9% purity. It is accordance with DIN 46235. Surface is finished with tin 8 um or copper finish on request.
AU lug is made of aluminium and it has at least 99.5% purity. It is accordance with DIN46239. Surface bright or tin plated at least 15 um. To avoid oxidization of the aluminium barrels capped are greased.
ATL lug is made of aluminum-copper bimetal. It is designed to avoid corrosion by the coupling effect when alumminum comes in contact with copper. It is used for screwing non-tension aluminium connections using copper washers.
