repair
131Small engine repair — is a vocational occupation that involves the maintenance and repair of low power internal combustion engines(gasoline/petrol) or electric engines. Equipment repaired includes chain saws, string trimmers, leaf blowers, snow blowers, lawn mowers,… …
132Aortic valve repair — is a surgical procedure used to correct some aortic valve disorders as an alternative to aortic valve replacement. Aortic valve repair is performed less often and is more technically difficult than mitral valve repair.There are two surcgical… …
