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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Hot rolled sheet is usually a sheet of metal that has been hot rolled and processed, usually from steel or other metals. Hot rolling is a metal working process whereby a metal billet is processed into a sheet of the desired size and shape by a roll pressing process at high temperatures.
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It is widely used for purlin and wall beam of steel structure building, and can also be self-assembled into lightweight roof frame, bracket and other building components.
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Cold-drawn precision seamless tubes, also known as cold-drawn precision steel tubes, are high-precision steel tubes typically used in applications requiring high dimensional accuracy and surface finish.
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This type of steel tube is usually used in specific structures or installations, based on its particular shape and strength characteristics.
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Double Z section, also known as double Z channel, is a commonly used steel profile, usually with a Z-shaped cross-section, similar to the shape of the letter "Z".
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