... steel tube, 2.induding round pipe, square pipe, rectangular pipe,slot pipi,oval pipe,embossed pipe,etc. Products:-stainless steel pipe / tube-stainless steel welded ... Material:201#, 202# , 304#, 304L#, 316#, 316L#, 430#Round pipe:O.D. : range from 9.5mm~159mm(1/2"-6")WallThickness: range ... from 0.25mm~3.0mm(31GA-11GA)Square pipe:Dimension : 10*10mm to 100*100mmWall ...