It is made by cold-rolled or hot-rolled black steel plates through an annealing process, which is a heat treatment process to improve the properties and structure of steel pipes by heating and cooling.
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Galvanized steel strip is a steel strip product that has been treated by hot dip galvanizing. In the production process, the steel strip is first prepared for surface treatment to remove impurities such as oil and oxides. Then, the steel strip is immersed in the molten zinc liquid, and a layer of zinc is uniformly covered on the surface of the steel strip by hot dip galvanizing process.
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Cold-rolled sheet is a kind of steel sheet material that has been cold-rolled at room temperature. It has a flat surface, excellent dimensional accuracy and mechanical properties, and has good machinability and weldability
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Hot rolled steel plate is a kind of steel product processed by hot rolling process. In the hot rolling process, the billet is heated to a high temperature state, then pressed and formed by the rolling unit, and finally the desired size and shape of the steel plate.
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Pre galvanized pipe is a kind of steel pipe with anti-corrosion properties, which improves its corrosion resistance by plating a layer of zinc on the surface of the steel pipe. This galvanized treatment can effectively prevent the steel pipe from being affected by oxidation and corrosion, making it more suitable for a variety of environments and applications.
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