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Can the tubes be used outdoors?
All tubes are suitable for external and internal use.
Galvanized tubes were covered with a protective layer against atmospheric factors using hot-dip galvanizing.
Aluminium tubes (black) are naturally suitable for external use as they get covered with a protective layer as soon as they come into contact with oxygen.
Black steel tubes are protected from the weather conditions by a black UV-resistant coating.
In the course of time corrosion may occur in damaged places and at the edges of the cuts.
Rust does not affect the strength of the structure and can usually be removed.