... steel I beam 1.manufactor sales directly 2.type:10#,12#,14#,16#,18#,20#,22#,25#,28#,32#,36#,40# stainless steel I beam ... StandardAISI,ASTM,GB,JIS,BS,etc.DescriptionStainless steel ... , stainless steel I beam, H beam,I beamMaterial201,304,304L ...