A na-eji Tricone bit eme ihe n'ọtụtụ ebe maka mkpọpu rotary, nke a na-ejikarị eme nnukwu oghere na oghere mmepụta na nnukwu ebe a na-egwupụta ihe, ogbunigwe mepere emepe, mpụta mmanụ ala, na ubi ndị ọzọ.Enwere otu abụọ nke nnukwu mkpọpu rotary: (1) ntụgharị rotary site n'itinye ihe dị elu na nkume site na cones atọ, na ...
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