all kinds of machined aluminium square tube 1.Material:Aluminum 6063 ... Wrap package etc.7.Use: industry, decoration, furniture, part of luggage etc8.Color: Silver,Golden,Black,Red,Blue and so ... be 0.2-0.5 mm,hole tolerance can be 0.05mm.2).All processes covering extruding,milling,machining and ... to the good quality and lead time.3).All OEM is welcome. all kinds of high quality aluminium square tube