... r3)We can produce as customer's designs 1.type:round steel q2352.standard:GB,JIS,ASTM,API,AISI,DIN,EN3 ... you required can be offeredProducthot rolled round steelsize:size:5.5 – 250mmGradeQ235,Q215,45#,35CrMo,42CrMo,20CrMoQ235B,20#,25#,35#,45#,20Cr ... ,40Cr,42CrMo,35CrMo,20CrMo,16Mn,Q345BStandardGB13013-91,GB699-1988 ...