The Building Structural Steel Plates Grades:
Q235GJ,Q345GJ,Q390GJ,Q420GJ,Q460GJ,SN400,SN490, 275(D,E,EZ),355(D,E,EM),355EMZ,450EMZ
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The Alloy Structural Steel Grades:
50MnV,15GrMo,20GrMo,30GrMo,35GrMo,20Gr,40Gr,20Mn2,40Mn2,20GrMnMo,
12Gr1MoV,30GrMnSiA,25GrMo4,34GrMo4,42GrMo4
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