Gem Bids For Fabrication Of Mould For Inner Tinted 2.6+ /- 0.1mm Thickpolycarbonate Visor, Fabrication Of Mould For Outer Clear2.6+ /- 0.1mm Thick Polycarbonate Visor, Unpolishedinner Tinted Polycarbonate Visor For Large Size Mirageaircrew Helmet, Unpolished Outer Clear Polycarbonate Visorfor Large Size Mirage Aircrew Helmet, Inner Tintedpolycarbonate Visor For Large Size Mirage Aircrew Helmet, Outer Clear Polycarbonate Visor For Large Size Mirageaircrew Helmet