... *75*10mm 4 supply ability 3000t perday JIS angle ironType:Equal, UnequalCategory:Steel Angles,metal bulding materialsGrade:Q235B,SS400,Q345B,ST37 ... sides uprightness right angles section. It could be divided into equal and unequal shape. The kind which have two same uprightness ... border is equal angle. The kind one border longer than another is unequal ...