Low alloy and high strength plate 1,Material:CortenB. 2, ... any size Q345,Q390,Q420,Q460GB/T1591Makes mechanical device and other structural elements like drilling machine, power shovel, electricity ... in workshop, the general construction and each kind of project machinery, like the mine and each kind of project construction ... S420NL,S450JO,S460N,EN10025WH60,WH410LK(BB41BF) Steel Plate(Sheet)