... ,Q345 2),standard:DIN ATSM AISI JIS 3),hot rolled Steel Billets Exporter1),Grade:3SP,Q235,20MnSi,16Mn,42CrMo,35CrMo,40Cr,Q3452 ... , which is also the location of Laiwu Steel Group. In 2010, the steel output of the whole city reached 17 million tons. We have strong cooperative ...