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    Tianjin YuantaiDerun Steel Tube Manufacturing Group Co., Ltd. is a steel pipe factory certified by EN ASTM JIS specializing in the production and export of all kinds of square rectangular pipe, galvanized pipe, ERW welded pipe, spiral pipe, submerged arc welded pipe, straight seam pipe, seamless pipe, color coated steel coil, galvanized ...

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    Hot Dipped Galvanized Round Steel Pipe TIME:2016-05-15. Hot Dipped Galvanized Round Steel Pipe 1.Product advantages: Hot galvanizing has the advantages of uniform coating, strong adhesion and long service life.Complex physical and chemical reactions take place between the hot galvanized steel tube matrix and the molten bath to form a tightly co...

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    What is hot dipped galvanized steel pipe? Hot-dip galvanizing (HDG), as referenced in the process of dipping fabricated steel into a kettle or vat of molten zinc. While the steel is in the kettle, the iron metallurgically reacts with the molten zinc to form a tightly-bonded alloy coating that provides superior corrosion protection to the steel.

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    2018-5-16u2002·u2002ASTM A53 specification covers the steel pipe manufacturing types in seamless and welded, material in carbon steel, black steel. Surface natural, black, and hot-dipped galvanized zinc-coated steel pipe. Diameters range from NPS 1⁄8 to NPS 26 (10.3mm to 660mm), nominal wall thickness. ASTM A106 standard specification covers the seamless carbon ...

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