A na-ejikarị mkpara carbide ciment arụ ọrụ maka olulu mmiri, igwe igwe ngwụcha na reamers.Enwere ike iji ya maka ịkpụ, stampụ na ngwaọrụ nha.A na-eji ya na-emepụta akwụkwọ, nkwakọ ngwaahịa, mbipụta, na ụlọ ọrụ nhazi igwe anaghị emepụta ihe.Na mgbakwunye, a na-ejikwa ya n'ọtụtụ ebe t ...
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