Close up of worker hands changes spark plugs in car engine in auto service. An auto mechanic replaces the spark plugs in the car. Male auto mechanic changes spark plugs in a car engine
Close up of man hand putting plug in electricity socket to charge
Man cleaning spark plug with blowtorch
Panning shot of professional carpenter putting wooden plank on workbench in woodworking workshop
Tracking medium shot of senior male lab worker in medical uniform coming to vertical stand putting plug plants on it in laboratory