[Experiences in improving working conditions at the ore enriching plant of the Zaval'evsk Graphite Combine].
D002244:Carbon; D004391:Dust; D004781:Environmental Exposure; D009787:Occupational Medicine; D012822:Silicon Dioxide; D014455:Ukraine
D004391:Dust; D002244:Carbon; D012822:Silicon Dioxide
Opyt uluchsheniia usloviĭ truda rabochikh obogatitel'noĭ fabriki zaval'evskogo grafitovogo kombinata.