tender for leather gauntlet for mig welders for protection of heat absorption andradiation. clws specn.no. mso/33/specn/v/02/mig dt.15-3-11, is : 2573-1986 [hsn code-4203](shelf life 36 months) as per specn. mso/33/specn/v-02/mig dated-15.03.11,is:2573-1986.