... , A633E, A588 Grade B2>. Standard: JIS G3106 Grade: SM490B, SM520, SM5703>. DIN 17100 St 52-34>. Standard: DIN 17102 Grade: StE355, StE4605>. Standard ... Steel Plate:1>. Standard: Special Condition Grade: 14MnNbq2>. GB Q235qC, Q345qC (16Mnq), Q370qC, Q420qCBuilding Structural Steel Plate:GB Q235GJC, Q345GJC, Q390GJC, Q420GJC, Q460GJC Realative pictures:Alloy steel ...