Gem bids for Item 1 High Pure Tantalum Wire 0.50 Mm Diameter As Techspec Annex Attached, Item 2 High Pure Tantalum Sheet 200Mm X 200 Mm X 0.30 Mm Thickness As Tech Spec Ann, Item 3 High Pure Tantalum Sheet 200 X 200 X 0.50 Mmthickness As Tech Spec Annex Attached