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Q235 Square Tube specification can be - S355JR Square Steel Tube/pipe specification,S355JR Square Steel Tube GB3094 Q235 Square Tube Chemical Composition

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Q195, Q215, Q235 Chemical Composition & Mechanical Properties Galvanized Steel Strip Quality: Q195 Chemical Composition & Mechanical Seamless Tube . NO

Q235 square tube welded should be noted that seven questions

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Q235 B chemical information,mechanical properties, Tube & Pipe; Non-Magnetic Steel; Stock; Q235 B Chemical composition; Q235 B Mechanical Properties;