(c) a system for the sale of digital video surveillance systems; the sale of lighting equipment; the sale of broadcast video equipment; the sale of office equipment; the sale of office supplies; the sale of mobile terminal equipment; the sale of smart unmanned flight devices; the sale of software network equipment; the sale of computer computing hardware and auxiliary equipment; the sale of communications equipment; the sale of computer hardware and equipment; the sale of artificial smart hardware; the sale of optical equipment; the sale of office equipment; the sale of office supplies; the sale of mobile end equipment; the sale of mobile communications equipment; the sale of smart unmanned flight equipment; the sale of equipment for the sale of satellite equipment; the sale of satellite equipment for the sale of satellite equipment; the sale of satellite equipment for the sale of satellite equipment; the sale of electronic equipment for the sale of electronics; the provision of equ...