Steel brace is suitable for roof and wall beams of steel structure engineering. Straightening generally refers to round steel that ties steel purlins, i.e. coarse steel bars, to enhance the stability of purlins and make purlins less prone to instability and damage under certain external forces. There are diagonal braces (i.e. 45-degree bending at the screw thread) and straight braces (i.e. the whole is straight). After hot galvanizing treatment, antirust effect is achieved.