... rare metal Tantalum alloy and Niobium alloy such as wire, tube, bar,plate,etc Changsha south tantalum niobium Co.,Ltd specialize ... foils, sheets, wires, rods, bars, plates, seamless tubes, targets, crucibles capillary tube, welded tubing sputtering target etc. in conformity with ASTM. For ... ; - Tantalum alloy (Ta2. 5w, Ta-2. 5w, Ta2. 5w) seamless tube OD1.5 up to 120 mm Outer Diameter x 0 ...