Aluminum scaffold beam is mainly produced with alloy number 6061 or 6005 with treatment of T6. No surface treatment needed. We provide machining including hole drilling and wood assembling. There're different size of beam, including 120x80, 120x85, 123x75, 140x83, 150x75 and 150x90, etc. The beams are widely used for building construction as part of strong supporting system.