... 1.Purity:TREM>=99.9%, Yb/TREM>=99.99% 2.Surface:light without stain distilled Ytterbium Metal (Yb Metal) target 1.Purity ... :TREM>=99.9%,Yb/TREM>=99.99% High vacuum distillation ... product' specification as the customer's specification distilled Ytterbium Metal (Yb Metal) target