Q: Foodstuffs – Drinks – Cosmetics – Paramedical – Health – HygieneM: Medicine – Surgery – Orthopaedics – Material for disabledD: Building – Architecture – Civil Engineering – Construction – Materials – WoodworksW: Hardware – Software – Cybersecurity – Blockchain – Internet of things (IoT)Z: Energy – Renewable and green energyA: Mechanics – Engines – Machinery – Tools – Industrial processes – MetallurgyC: Electronics – Electricity – Methods of communication – Electrical networkV: Protection of the environment – RecyclingE: Sanitation – Ventilation – HeatingP: Transport – Moto vehicles – Ships – Aviation – AccessoriesN: Optics – Photography – Cinematography - Eyewear