... GB 5237-2008 3)high-quality extrusion profile for auto window frame aluminum 001-0251)Alloy No.: ... , glod and so on.5)Introduction:We can supply all kinds of aluminum profile, aluminum extruded profile, ... rail profile, radiate heat profile, pipeline profile, auto window frames profile,window and door profile, decoration ... according to customers' need. extrusion profile for auto window frame aluminum