Ntucha aka, a na-eji usoro a ugbu a maka ọrụ nka na-achọsi ike.Ọmarịcha ọnọdụ nwere ike were ụzọ nke ntuziaka polishing, ntuziaka polishing bụ dịtụ ngwa ngwa na adabara polishing nke elu àgwà ọma akụkụ.
The n'ọnọdu ziri ezi na-achịkwa n'ime 0.15mm na diagonal iche bụ n'ime 0.8mm.Dị ka ihe dị mkpa na-egbutu ihe na ọkpụrụkpụ, nwere ike igbutu ọtụtụ efere n'otu oge ahụ, na-ebelata oge mmepụta nke ọma, nkwụsị nke ọma, na-enweghị ntinye aka na ịkpụ, hụ na usoro ịkpụcha kacha mma.
Oge nzipu: Dec-08-2021