carbon steel electrode,welding electrode,welding rod 2.5*350mm,3.2*350mm,4.0*400mm,5.0*500mm available ISO9001,CCC,CCS Carbon ... : DegreeReference Current (AC, DC+) Electrode Diameter(mm)φ2.5φ3.2φ4.0φ5.0Welding Current (A)60~10080~140110~210160~230Instructions ... be used and stringer bead is suitable.Welding Positions: welding Rod Supplier