Anyị na-eji ụlọ ọrụ nrụpụta ọkachamara anyị na-emepụta ngwaahịa ọla ndị a siri ike n'ime ụlọ. Karịsịa, anyị na-enye ngwá ọrụ ịkpụ, njedebe, ntinye, burrs. Ngwa PCD, ngwaọrụ ziri ezi, akụkụ tungsten carbide wear, mkpanaka, efere, mgbanaka, bushes, ndụmọdụ brazed, wdg.