COLD-BENDING SQUARE/RECTANGULAR STEEL My factory produce COLD-BENDING SQUARE/RECTANGULAR STEEL.Specifications List is 50mm*50mm---500mm*500mm,Thickness is 4mm---16mm various types of square rectangular steel pipeGrade:S235JRH,S355J2H, S235JRH, S275JOH, S275J2H , S355JOH, S355J2HExecution Standard: EN10210-1:2006, EN10210-2:2006, EN10219-1:2006 EN10219-2:2006.