... (Q235,20#,45#) 2.Round Bar 3.steel round bar 4.steel bar 1.Round Bar (Q235,20#,45#)2.Round Bar3.steel round bar4.steel barRound ... Bar Material:20#,45# Round bar ... used in enviroment protection,traffic,food industry,medical equipment etc.Round BarStandard:GB,JIS,ASTM,DIN,AISI,BSMaterial: 20#,45#, ...