Ọrụ nke brush carbon bụ tumadi na-eduzi ọkụ eletrik mgbe ọ na-ete ihe megide metal, nke na-abụghị otu ihe ahụ dị ka mgbe ígwè-na-metal esemokwu na-eduzi ọkụ eletrik; mgbe ígwè-na-metal na-ehicha ma na-eduzi ọkụ eletrik, ike esemokwu nwere ike ịba ụba, nkwonkwo nwere ike ịgbakọta ọnụ; na brushes Carb......
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