Hemispherical Germanium Granule 1, Brand: HENGXIANG 2, Material: Metal germanium 3, Purity: 99.999% 4, Surface finish: 80/60 Germanium Granule Hemispherical shape Material : metal germaniumPurity : 99.999%Specification : Φ3mm;Φ4mm;Φ5mm;Φ6mm; Φ7mm;Φ8mmSurface finish : 80/60Package : blister plate (100PCS/layer)