Nchara nchara

Ngwa nchara nchara bụ ihe eji eme ihe nchara. Enwere ike iji ya dochie ọtụtụ ịnweta na ahịhịa na-abụghị nke ahịhịa, dị ka alumina, silina carbide, sandz ájá, wdg bead.
A na-eji grit igwe anaghị agba nchara, na-ewepu ma na-eme ka ihe na-adịghị mma nke ọla, na-etolite etolite na-enweghị atụ, yabụ zuo oke maka elu preseurement tupu ikwu okwu. E jiri ya tụnyere Abrasives na-abụghị nke abrasive, na-enweghị igwe anaghị agba nchara belata ụgwọ ọrụ na uzuzu uzuzu ma meziwanye gburugburu ebe obibi.
Grish igwe anaghị agba nchara nwere ogologo ọrụ na arụmọrụ dị elu, na-eme ka usoro ịmị ọkụ dị elu, na-eme ka usoro dị mma, na-enweta ogo na-achasi ike na ọdịdị.