Steel Round BarChina Cold Drawn 1215 42CrMo 25X25 416 Q235B Q345b Q345D Q345e Mild Carbon AISI 321 Stainless Steel Round Bar, Find details about China Stainless Steel Bar, 316 Stainless Steel Bar from Cold Drawn 1215 42CrMo 25X25 416 Q235B Q345b Q345D Q345e Mild Carbon AISI 321 Stainless Steel Round Bar