Place of Origin: Shaanxi, China (Mainland) Brand Name: JT Model Number: JT-Nb-tube Application: industrial/medical/chemical Shape: round Material: niobium Dimensions: L*OD(200-6000)*(1-150)mm Chemical Composition: 99.95%min Product name: high quality China niobium tube Name: niobium tube Color: silver white Purity: 99.96% Type: round Certificate: ISO9001:2008 Size: customers' requirements Appearance: polished Standard: ASTM B521-98