Square Galvanized Steel Tube/Pipe 1.steel grade:Q195 2.thickness:0.4-2 ... :15*15-40*40mm 4.length:4.5-12m Square Galvanized Steel Tube/Pipe the mechanical properties: the processing flow: the ... to 2.0mmor as the requirement of the clientssection shaperound,square,rectangular,ovalOD(mm)round:14,16,19,22,25,32 ... to contact with me this is Annie Wangmoblie:0086-18831600670 Square Galvanized Steel Tube/Pipe