checkered steel coil Q235B hot rolled steel sheets 1.Grade:Q235B,Q345B,SS400,S235JR,ASTM A36,S355JR 2.Factory direct price checkered steel coil Q235B hot rolled steel sheets Quick details: Standard ... : AISI,ASTM,BS,JB,JIS Brand name:Baosteel Masteel Ansteel Shousteel Shasteel... Technical:Hot rolled Grade:Q235B ...