View Historical Standards for B394:

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Document Designation and Title Year Select Item(s) B394 Standard Specification for Niobium and Niobium Alloy Seamless and Welded Tubes 09 B394 Standard Specification for Niobium and Niobium Alloy Seamless and Welded Tubes 03 B394 Standard Specification for Niobium and Niobium Alloy Seamless and Welded Tubes 99