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© May 2005 Lorentz JÄNTSCHI && Sorana Daniela BOLBOACĂ

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 D01 Inorganic Chemicals D007287 +
  D01.268 Elements D004602 +
   D01.268.150 Carbon D002244 +
    D01.268.150.300 Graphite D006108 


 D01 Inorganic Chemicals D007287 +
  D01.578 Minerals D008903 +
   D01.578.300 Graphite D006108