... many sorts and grades of their metals, sheet, tube, wire ,rod ,crucible , target ,alloy and so on. Niobium ... for steel ,ceramics ,electronics ,nuclear energy industries and superconductor technology. - Niobium wires (ASTM B 392-95) 0. ... 3mm up to 3. 0mm Diameter x R / L in coil - Niobium 1% Zirconium wires ... wires) 0. 3mm up to 3. 0mm Diameter x R / L in coil Special requirements to be agreed ...