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Kedu àgwà ndị na-emepụta ihe ọkụkụ laser kwesịrị inwe?
N'ime afọ ndị na-adịbeghị anya, ndị na-emepụta ihe na-emepụta laser na-aga n'ihu na-apụta, ma ezigbo ndị na-emepụta ihe na-emepụta laser ka bụ obere. Ezi mpempe akwụkwọ metal nhazi laser ọnwụ nhazi emepụta kwesịrị inwe ihe àgwà? Enwere m isi ihe atọ maka gị: 1. Focus o...GỤKWUO
