supply of mmaw electrodes, size : 3.15 mm dia. x 350 mm, low heat input type, class e1, mmaw electrodes, size : 3.15 mm dia. x 350 mm, low heat input type, class e1 to code: er4211x ( medium coated ) of is: 814-04, reaffirmed 2021. matl. & spec.:irs: m28 / 2020. material to be supplied in packed condition as per clause 5.1.1, page 10 of 34. shelf life - the shelf life of the 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: 18 months after the date of delivery ] new general stores depot / kgp, west bengal 4987.00 metre ser