Galvanised steel strip is a metal strip that has undergone a hot-dip treatment, usually made from carbon steel. This process adds a zinc coating to the surface of the steel strip to increase its resistance to corrosion and durability.
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Galvanised square tube is a kind of with hot-rolled or cold-rolled galvanised steel strip or galvanised coil for the billet by cold bending processing and shaping, and then by high-frequency welding made of square cross-section shape dimensions of the hollow square cross-section steel tube.
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Annealed square pipe is a kind of square steel pipe treated by heat treatment process, especially hot annealing process. Hot annealing is a common metal heat treatment method designed to improve the physical and mechanical properties of metal materials.
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Strips are usually made from steel, which is processed through a cold or hot rolling process. Strip steel usually has a narrow width, which is small in relation to its length, and a relatively thin thickness.
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Galvanized square tubes are treated with a galvanizing process to cover the surface with a zinc layer to improve its corrosion resistance and service life.
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Pre-galvanized square tubing is usually made from cold or hot rolled steel sheets, which are then galvanized on the surface. Galvanizing is done by dipping the steel pipe into molten zinc to form a uniform zinc coating that provides protection against corrosion.
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