1. Widely used in Doors & Windows series, Curtain Wall. 2.Competitive price 3.Excellent quality 1)Quality guaranteed and Good price2) Widely used in construction, decoration and industry3) Various kinds of raw material :aluminum alloy such as 60004) Various in size, style (aluminum profile , rods, angles, square bars , "T" profiles, and "U" channel5)Surface finish:mill finish,powder coated, ...