Welded square tubes, also known as welded tubes, are square tubes made from steel plates or strips that are welded after being rolled and shaped.
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Galvanising is an anti-corrosion treatment in which steel materials are immersed in a molten zinc solution to form a uniform layer of zinc that protects the steel from the effects of oxidation and corrosion.
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Aluminium-zinc coils are steel coils with an aluminium-zinc alloy coating on the surface, which provides high corrosion and heat resistance. The aluminium-zinc layer consists of 55% aluminium, 43.4% zinc and 1.6% silicon.
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Galvanized square tube is a kind of hot-rolled or cold-rolled galvanized steel strip or galvanized coil for the billet by cold bending processing and forming, and then by high-frequency welding made of square cross-section shape dimensions of the hollow square cross-section steel tube, or will be done beforehand cold-formed hollow steel tube and then hot-dip galvanized processed into galvanized square tube.
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Color coated coil has lightweight, beautiful and good anti-corrosion properties, and can be directly processed, mainly used in advertising, construction, home appliance industry, electrical appliances industry, furniture industry and transportation industry.
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Black annealed square tubes are square steel tubes that have been annealed and are commonly used in building structures, machinery manufacturing, vehicle manufacturing and other fields.
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