... wire, Tantalum powder, Tantalum target, Niobium bar, Niobium rod, Niobium tube, Niobium wire, Niobium powder and Tungsten, etc., If interested, please ... & nuts 7. Ta &Nb welded tube 8. Anti-corrosive Ta &Nb parts 9. Ta &Nb heating element 10. Intensive Ta &Nb plate 11 ... . Diameter-changing Tube The sizes are available upon customers ...