The alloy for Aluminium Door includes: : 6005,6060,6061,6063,6106,6351 T5 T6, and others alloy! The surface treatments for our products includes: Anodization, PVDF Coating, Powder coating, Electrophoretic Coating, polishing and so on! Our products as follows: 1. Aluminium Curtain wall profiles: semi visible surtain wall, visible curtain wall, invisible curtain wall, curtain wall with insulating glass. 2. Aluminium window profile: casement window, sliding window, shutter window. 3. Aluminium door profile: casement door, spring door, sliding door, show door, guard again theft door, roll door. 4. Aluminium heatsink: heatsink for computers, heatsink for electronic products. 5. Others: aluminium balustrade, aluminium window screen, aluminium photoframe, aluminium pipe & tube, aluminium shower room, and so on. We also can produce aluminium extrusion profile according to your drawings and samples with different kind of surface treatments! Do not hesitate to contact us , we shall be glad to service of you in the near future!