During the hot rolling process of the square rectangular tube, if it encounters the problem of scale, it will affect the surface quality, and it will also affect the subsequent cold rolling process. In order to solve this problem, we can take the following four measures:(1) Lubricated rollingT
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When we inspect the quality of square and rectangular tube blanks, we can start from the following ten aspects:(1) There shall be no cracks, scars, inclusions, folds, cracks, or ears on the surface of the square tube blank.(2) The low-magnification structural inspection of the square and rectangular
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Color-coated coils are widely used in many places nowadays. This product has many applications and can be seen everywhere. Let us give a detailed introduction to the classification of color-coated coils.First and foremost, the basic concept of color-coated coils, also known as black steel coils, is
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The square tube's general length is 4m to 12m, mostly 6m and 12m.Square tube classification:1. Section/section shape: square tube (square tube), rectangular square tube (rectangular tube);2. Surface treatment process: black square tube, hot-dip galvanized square tube, galvanized strip square tub
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