Niobiu Rods Grade:Nb1,Nb2 Brand:Getwick Standard: ASTM B392 Different sizes are available Niobiu RodsGrade:Nb1,Nb2Brand:GetwickStandard: ASTM B392 Different sizes are availableNiobiu RodsStandard ASTM B392Niobium unalloyed barNiobium alloy barRare metalNiobiu RodsGrade: R04200-1 type R04210-2 type R04251-3 type R04261-4 type.Spec.: ASTM B392, ASME SB392Size: dia. 3.0mm-65mm x 3000mm lL.