Mmiri mkpakọ
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nnukwu igwe anaghị agba nchara helical mkpakọ eriri mmiri mmiri emere nke ọma
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Isi iyi mkpakọ siri ike dị elu nke nha dị iche iche maka igwe mmepụta ihe
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Red electrophoretic mkpakọ mmiri
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Ndị na-emepụta ihe nwere isi iyi mkpakọ spiral dị ọnụ ala nke nha dị iche iche
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Spiral spring emepụta metal n'ọbọ, mmiri n'ọbọ, sooks elu-nrụgide sooks nchebe uwe mmiri
