... bar 1.ASTM B 365-98 RO5200, RO5400, RO5252(Ta-2.5W), RO5255(Ta-10W) 2.Size:Dia3mm(min) 3.Purity:99.95 ... % RO5200 Tantalum Bar1)Grade: RO5200, RO5400, RO5252(Ta-2.5W), RO5255(Ta-10W)2) Available size:3~120mm3) Standard: As per ... .95% or 99.99%5) Grade:RO5200, RO5400, RO5252(Ta-2.5W), RO5255(Ta-10W)6) Size:Dia3.0120mmX length5002000mm7) Standard:ASTM365-98 ...