A na-ejikarị jig eme ihe n'ọkwa (iji chọpụta ọnọdụ ziri ezi nke workpiece na ntinye), ngwaọrụ ihe ndozi, ihe na-eduzi cutter (iji chọpụta ọnọdụ nke onye na-egbu osisi na workpiece ma ọ bụ ntụziaka cutter), nkesa ngwaọrụ (nke mere na workpiece nwere ike com...
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