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NOVE JAKOSTI OLEJARSKYCH TRUBEK PRO VELMI HLUBOKE VYRTY = NEW HIGH QUALITY TUBES FOR PETROLEUM AND NATURAL GAS PIPESGOCAL J; PARIK B.1982; HUTNIK; CSK; DA. 1982-02; VOL. 32; NO 2; PP. 57-59; BIBL. 3 REF.Article
