... )Standard:GB 5237-2008 3)high-quality extrusion profile for auto window frame aluminum 001-0251)Alloy No.:6005,6060,6061,6063 ... profile, elevator guide rail profile, radiate heat profile, pipeline profile, auto window frames profile,window and door profile, decoration profile, mechanical ... , woden case,or according to customers' need. extrusion profile for auto window frame aluminum