Isidakamizwa se-Raw material sibhekisela emuthini wempahla eluhlaza osetshenziswa ekukhiqizeni amalungiselelo ahlukahlukene, okuyisithako esisebenzayo ekulungiseni, izimpushana ezihlukahlukene, amakristalu, okukhishwe, njll. ezisetshenziselwa izinjongo zokwelapha ezilungiselelwe ukuhlanganiswa kwamakhemikhali, isizinda sezitshalo noma i-biotechnology, kodwa I-subst...
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