... , ring, wire, foil, sheet, rod, strip, plate, tube, alloys Niobium tube UNS Designation R05400 -- non-alloyed Tantalum,powder metallurgy,concretion ... screw ,ring ,wire, foil, sheet, rod, strip, plate, tube, alloys according to Standard ASTM AMS ASME MIL DMS JIS ... . Our customers are in aerospace industry, chemical equipment industry, medical industry and civilian industry in USA, UK, Germany, Sweden ...