... 3.Q195-Q275,40Cr,20-42CrMo,20-30CrMnTi carbon steel round bars,carbon steel2.10#,20#,25#,30#,35#,40#,45#,50 ... Q195-Q275,40Cr,20-42CrMo,20-30CrMnTiDescriptionCarbon structure steel/carbon steel round bar/flat bar/carbon steel plate/sheetGradeGB Q255/JIS SS490/DIN S275J0/ ... we can supply our customers with high-quality and low-cost products. We can also provide steel products according to our customers' ...