... for roof construction series 3)No roller axis of aluminum roller tube Aluminum1)Alloy No.:6061,6063...2 ... kinds of aluminum profile, aluminum extruded profile, solar energy profile, elevator guide rail profile, radiate heat ... curtain wall profile, building roofing profile, finned tube profile, general profile and others6)Certificates:ISO 9001 ... case,or according to customers' need. roller tube Aluminum