[ aircraft; namely, airplanes and helicopters and structural parts therefor]

Servicing, maintenance and repair of aircraft, aircraft turbines, aircraft components and parts and fittings therefor; rebuilding and refurbishment of worn or partially destroyed aircraft engines, turbines for aircraft and aircraft engine parts; cleaning of hot section turbine components for aircraft

Coating, welding, heat treatment and laser drilling of hot section aircraft turbine components; treatment of materials for aircraft and aircraft parts; namely, metal plating, metal tempering and metal treatment of aircraft parts and fittings therefor