Secondo Mona is a company that manufactures aircraft fuel systems and engine equipment. It also provides electromechanical and hydraulic actuators, landing gear, and related bodies, as well as services such as maintenance, repair, and overhaul (MRO), custom design and development, heat and surface treatment, assembly, product support, etc. The company caters to the large civil and military aircraft, business jet, unmanned aerial vehicle, helicopter and tiltrotor, and engine markets.