... OD:15*15-40*40mm 4.length:4.5-12m Square Galvanized Steel Tube/Pipe the mechanical properties: the processing ... to 2.0mmor as the requirement of the clientssection shaperound,square,rectangular,ovalOD(mm)round:14,16,19,22,25, ... of the clientspayment terms T/T or L/C at sightor as the requirement of the clients trade terms ... contact with me this is Annie Wangmoblie:0086-18831600670 Square Steel Tube/Pipe