What are the features of the poor aluminum profiles?
Low precision, bad feel, and so on, some inferior shape.You'd better go to the manufacturer you trust.
Poor quality aluminum profile:1, chemical composition unqualified, seriously endanger the safety of construction projects.2 、 profile corrosion resistance function is low.3, the film thickness is thin. The national standard rules of construction of aluminum oxide film thickness not less than 10um (m). The thickness is not enough, aluminum looks easy to rust and corrosion. Some no name and address, production license, certificate of inspection in the aluminum oxide film, the thickness of only 2 to 4um, some even without film.
Poor quality aluminum profile:1, chemical composition unqualified, seriously endanger the safety of construction projects.2 、 profile corrosion resistance function is low.3, the film thickness is thin. The national standard rules of construction of aluminum oxide film thickness not less than 10um (m). The thickness is not enough, aluminum looks easy to rust and corrosion. Some no name and address, production license, certificate of inspection in the aluminum oxide film, the thickness of only 2 to 4um, some even without film.
