20# rectangular steel pipes We can supply the products of high ... *10--100*100-300*300-600*600mm,WallThickness :0.5mm-25mm Rectangle pipe:ODJ10*15--150*50--300*400--600*550mm ... A500 JIS G3466,EN10210 or technical agreementGrade:Q195-Q235,Q345,20#,AlloySteelST37-2,ST52-3,S235,S355etcPacking: In bundles, Varnish coating ...