N: Optics – Photography – Cinematography - EyewearA: Mechanics – Engines – Machinery – Tools – Industrial processes – MetallurgyZ: Energy – Renewable and green energyD: Building – Architecture – Civil Engineering – Construction – Materials – WoodworksM: Medicine – Surgery – Orthopaedics – Material for disabledC: Electronics – Electricity – Methods of communication – Electrical networkP: Transport – Moto vehicles – Ships – Aviation – AccessoriesW: Hardware – Software – Cybersecurity – Blockchain – Internet of things (IoT)V: Protection of the environment – RecyclingQ: Foodstuffs – Drinks – Cosmetics – Paramedical – Health – Hygiene