钴≥99.5%的超细钴粉(费氏粒度0.8-1.5μm,松装密度0.4-0.8g/立方厘米)

Supper-fine cobalt powders, containing 99.5% or more of cobalt(Fischer granularinty 0.8-1.5μm, fill density 0.4-0.89/cm3)