aluminium extrusion profile 1.alloy:6061,6063,6005 ... etc 3.OEM Welcome different surface treatment aluminium extrusion profile Our main Products1.Material:Aluminum Alloy 6063 60052. ... R & D, marketing and production of various aluminum extrusion , doors and windows, curtain wall and stainless steel ... Group now occupy 140000 sq. meters, housing 18 extrusion lines with more than 700 workers, Annual output ...