Right-angle Square Tube
Right-angle square tube is a kind of special square tube, which is different from ordinary arc square tube for its R angle is close to 0. It is a square tube rolled from a round tube. Right-angled square tube whose R angle is not more than 1 times of the wall thickness.
Right-angle square tube: when the wall thickness<3mm, the R angle is<1mm;
When the wall thickness is 3-8mm, the R angle is<2mm;
When the wall thickness is>8mm, the R angle is < 3mm, which is a sharp rectangular tube.
Classify according to the cross-sectional shape , square right-angled square tube and rectangular right-angled square tube.
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