Ingkpụ igwe eji igwe tungsten siri ike na-egbu egbu
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Ihe kachasị eme ihe maka Mill Mills bụ Tyssten Carbide, mana HSS (nchara ngwa ngwa) na cobalt (nchara dị elu na cobalt dị ka alloy) dịkwa.
Ogologo oge ụdị dayameta nwere oke nke ịkpụ.
Cutter anọ na-acha uhie uhie nwere ihe ngosi pụrụ iche iji melite mkpofu ofufe.
Zitere anyị ozi gị:
Dee ozi gị ebe a ma zigara anyị ya
