supply of manual metal arc welding electrode, class a1, type of coating: medium, size 3.15 mm. dia x 350 mm length. specification: irs m : 28-2020 version 1.0, aws code - er 4112 ( medium coated ) as per is:814- 2004 ( reaffirmed-2021 ) , sixth revision ( incorporating amendment no.01 and amendment no.02 ) . shelf life of electrodes shall be 12 months from the date of receipt in stores or 18 months from the date of manufacture whichever is more. [ warranty period: 12 months after the date of delivery ] bcn / kjgy, nr uttar pradesh 9000.00 metre dy.cmmamv / lko, nr uttar pradesh 66731.00 metre etd / gzb, nr uttar pradesh 9882.00 metre