Metal structures; door frames of metal; greenhouse frames of metal; space frames of metal; box frames of metal; stainless steel; stainless steel tubes.

Solar panels; gateways for the Internet of Things [IoT]; range extenders [antennas] for the Internet of things [IoT]; IoT [Internet of Things] sensors; modules of computer hardware for use in electronic devices for the Internet of Things; computer application software for use in the implementation of the Internet of Things [IOT]; wireless routers; USB wireless routers; lithium batteries and cells; lithium-ion batteries; secondary lithium batteries; USB cables; USB modems; USB adapters; USB hubs; USB [universal serial bus] operating software; liquid crystal displays; LCD monitors; LCD [liquid crystal display] projectors; large-screen liquid crystal displays [LCDs]; LCDs [liquid crystal displays]; LCD projectors [liquid crystal displays]; TFT-LCD displays [thin-film-transistor liquid-crystal displays]; digital signage-display panels; computer software for displaying digital media; accumulator boxes; battery packs; battery testing apparatus.