... Size:Dia3mm(min) Purity:99.95%min ISO9001: 2000SGS Tantalum sheet/platesizes:3mm+Purity: 99.95%ISO9001: 2000Hlmet CO.,LTD holds ... new materials, including many sorts and grades of their metals, sheet, tube, wire ,rod ,crucible , target ,alloy and so on. Tantalum ...