supply of the electrode wire for mig / mag welding shall be copper coatedsolid continuous filler wire of size 1.2mm dia with good weldingcharacteristics suitable for welding steel to is:2062 / 2011. thecopper coating of the wire ( excluding the residual copper contentof the wire ) shall be 0.20 to 0.40% by weight. wire shallconformto irs class 1 of rdso specn.no.irs m46 / 2013 withamendment no.1.the brand shall be approved by rdso under irsclass 1. the wire shall be wound in the spool in layered woundmethod ( and not random winding method ) ie.the wire shall bewound in close layers and in each layer, the wire shall be woundin close lines without any gap / over lapping between the adjacentwindings. the maximum weight of the spool should be 12.5 kgs. [ warranty period: 30 months after the date of delivery ]