Hantle - Mathana lisebelisoa, basebetsi ba Selekane se ikhethileng, le ho molemo kamora - Litšebeletso tsa thekiso; Re lelapa le leholo, mang kapa mang ea lulang le mekhoa ea mokhatlo o nang le boleng ba mokhatlo oa "bonngoeng, boikemisetso, mamellehang 'bakeng sa koporo (Copper Atomic Spectroroscopy Standard Tsebiso ea 1.00 G Cu,C.i. Pigment black 15,Copper Atomic Spectroscopy Standard,Copper 11 oxide. Re amohela ka hloko ha bafuputsi ba tloha ka tlung le mose ho maoatle ho re otla le ho sebelisana 'moho le rona ho thabela bokamoso bo molemo. Sehlahisoa se tla fana ka lefatše lohle, joalo ka Europe, Amerika, Republic, e leng Czechi, Hollandi, Holland
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