1.Alloy Structural Steel Plate 2. High quality 3. Fast delivery 4. Can be ... . In view of clinets' different requirements, we can supply more steel plates with various specifications. (2) Standard: GB, ASTM, ASME, JIS ... : 15CrMo, 20CrMo, 35CrMo, 20Cr, 40Cr, 20Mn2, 40Mn2, 42CrMo 15CrMo Alloy Structural Steel Plate