4 Mm Dia Manual Metal Arc Welding Electrode, Class: 'A2' (Rutile Type), Type Of Coating : Medium, Conforming To The Spec. No. Irs: M-28/2020, Code: Er4211X As Per Is: 814-2004 With Amdt. No. '1' Of October 2005 & '2' Of March 2008 [ Warranty Period: 12 Months After The Date Of Delivery ] ]