The specification is dimension：13*13 mm-600*600mm,thickness:0.6-28mm,the length usually is 6000mm-12000mm,material usually is Q234,Q345.

Square pipe usually be in  the projects ofconstruction,machinery manufacurting,steel construction,it is also used in the in the shipbuilding,soal power stents,steel structur engineering,power engineering,power plants,agricultural and chemical machinery,glass curtain wall,automobile xhassis,airport,the boiler's construction,highway fence,building struture,pressure vesse,oil storage tanks,Bridges,power station equipment,lifting transportation machinery and other high load of welde structure,etc.

In addition to the above specification,we suold produce according to your requirmengt!