The Evolution of Colku: Njem nke Innovation na Imekọ ihe ọnụ
Kemgbe mmalite ya na 1989, Colku abụrụla ihe mgbawa ọhụrụ n'ihe gbasara ngwa ụlọ. Ihe malitere dị ka obere aka na-emepụta ndị fan ọkụ eletrik, DVD, mkpuchi mkpuchi, kettles, na ihe ndị na-enye mmiri abanyela na ụlọ ọrụ ike zuru ụwa ọnụ, mgbanwe ...
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