China AISI 1045/1050 Carbon Steel Flat Bar/Hot Rolled Steel Plate, Sm45/1.0503/1045/S45c Hot Work Tool Steel Plate, Find details about China AISI 1045 Hot Rolled Steel Plate, AISI 1045 Carbon Steel Flat Bar from AISI 1045/1050 Carbon Steel Flat Bar/Hot Rolled Steel Plate, Sm45/1.0503/1045/S45c Hot Work Tool Steel Plate