Tenders for Supply of Cup Type Goggles To Is-1179/67 Reaffirmed 2008 Consisting Of One Pair Of Filters Size Dia 52 +/- 0.2Mm X 3Mm +/- 0.2Mm Thick To Bss.679. 4/Gw2-F.G.And One Pair Of Cover Glasses Clear Glass Size 52Mm Dia X 2Mm+/- 0.2Mm Thick To Is 2835/87 Reaffirmed 2008 A Quality.