Categories

CN2822

28 Inorganic Chemicals, Organic or Inorganic Compounds of Precious Metals, of Rare-earth Metals, of Radioactive Elements or of Isotopes

2822 (01/1988-..) Cobalt Oxides and Hydroxides, Commercial Cobalt Oxides

28220000 (01/1988-..) Cobalt Oxides and Hydroxides, Commercial Cobalt Oxides