... rectangular pipeΦ40-Φ114Correspondent size square and rectangular pipeWall thickness0.4-1.25mm0.5-2.5mm0.6-3.25mm0.8-3 ... .5mm1-4mm1-4.5mm1.5-5mmSteel strip materialób≤580Mpa ós≤350Mpa carbon ... welder,storing device,forming and sizing unit,flying saw,straightener,end milling equipment,hydrostatic testing machine,charge table,sack&bale machine,high frequency ...