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Niobium and Niobium Alloys Tubes and Pipes

1. Niobium and Niobium Alloys Grade: RO4200-1,RO4210-2 2. Specification: Diameter Size: ODΦ2mm~Φ100mm; Wall Thickness 0.2~5mm×Length200~8000mm; 3. Standard: ASTM B394-18 Chemical Compositio