Plain film germanium granule 1, Brand: HENGXIANG 2, Material: metal germanium 3, Purity: 99.999% 4, Surface finish: 80/60 Plain film germanium granuleMaterial : metal germaniumPurity : 99.999%Specification : 1×1; 2×2; 3×3; 4×4; 5×5; 6×6; 7×7; 8×8Thickness : 0.5mm;1mm;1.2mm;1.5mmsurface finish : 80/60Package : blister plate (100PCS/layer)