aluminum alloy profile 1)Material:aluminum alloy 2)No roller axis of aluminum - black 3)Standard: GB5237-2008 aluminum alloy profile 1)Alloy No.:6061,6063...2)Temper:T3-T83 ... kinds of aluminum profile, aluminum extruded profile, solar energy profile, elevator guide rail profile, radiate heat profile, pipeline profile, auto window frames profile,window and door profile, decoration profile, mechanical ...