... outlet surface:anodized,powder coated quality guaranteed architectural aluminium profiles for air outlet itemsdescriptionsMaterialAluminium Alloy 6000seriesTemperT4,T5,T6Surface treatmentAnodizing, ... assured products, fully accredited by ISO9001Xinghua Aluminium Industry, a manufacturer of aluminium extrusion profile. We have 8 ... 285.10-6.100.20 architectural aluminium profiles for air outlet