Anyị nwere nnwale nke anyị iji hụ na nke ziri ezi na ọsọ. Usoro ihe mmepụta nwere ike ịgụnye usoro nyocha ndị a dị mkpa: Mediascope metrology (na-abụghị kọntaktị), na nnwale, nnwale nke igwefoto, nnwale enamel.
Hluer bụ onye ndu ahịa na nkwakọ ngwaahịa maka biya na ihe ọveraụ, anyị na-achọpụta na nyocha na mmepe, na-emepụta, na-emepụta ma nye ihe ngwọta ngwugwu Eco.