FlangeChina ASTM/AISI 1037 1039 1046 1053 1060 1566 1572 65mn Carbon Steel Sheet/ Checkered Plate / Coil/ Strip (GB 35Mn 40Mn 45Mn 50Mn 60Mn 70Mn), Find details about China Carbon Steel Pipe, Carbon Steel Bar from ASTM/AISI 1037 1039 1046 1053 1060 1566 1572 65mn Carbon Steel Sheet/ Checkered Plate / Coil/ Strip (GB 35Mn 40Mn 45Mn 50Mn 60Mn 70Mn)