C
CHEMISTRY; METALLURGY
C
CHEMISTRY; METALLURGY
C22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C22B
PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
C22B
PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
30/00
Obtaining antimony, arsenic or bismuth
30/00
Obtaining antimony, arsenic or bismuth
C22B30/02
Obtaining antimony
C22B30/02
Obtaining antimony