球形锗粒(无孔)材料:金属锗纯度:99.999%规格:Φ3mm,Φ4mm,Φ6mm,Φ7mm,Φ8mm,Φ10mm,Φ12mm表面光洁度:80/60包装:吸塑盘(100PCS/层)Spherical shape germanium granule (without aperture)Material : metal germaniumPurity : 99.999%Specification : Φ3mm, Φ4mm, Φ6mm, Φ7mm, Φ8mm, Φ10mm, Φ12mmsurface finish : 80/60Package : blister plate (100PCS/layer)