Nig (shenzhen) industries ltd., formerly the nig hardware factory established in 2013, developed over the years with smart door locks, smart doorbells, smart curtains, smart lights, and intelligent home-based product development, production and marketing of integrated business companies. In early 2018, nig (shenzhen) industries ltd. Was formally established, introducing the corinthian fingerprinting lock, forming a solid strategic cooperation system with major brand companies across the country, establishing well-established professional service teams in several provincial and municipal governments, with a service-based concept supported by sales, and winning the unanimous approval of many strategic collaborators and users. Consumer escalation in recent years has become the motive for many people to select smart home-based products, and the smart lock has become an attractive product. It is difficult to make a good smart lock compared to the traditional mechanical lock industry. So ...