Detailed Product Description Baoji Zhong Bang rare metal materials CO.,LTD holds Tantalum ,Niobium as the dominant products in the ... materials, including many sorts and grades of their metals, sheet, tube, wire ,rod ,crucible , target ,alloy and so on.Tantalum ... , chemical processing , hard alloy cutters , aerospace and aviation.Tantalum tube/pipe Material: RO5200, RO5400, RO5252(Ta-2.5W), RO5255(Ta ...