What line brand is Langfei?

First line. First-line brands refer to brands with high brand awareness, high gold content and excellent high-end products. Langfei Intelligent Lock Company is an enterprise integrating scientific research, production and sales. Is a scientific and technological enterprise with R&D, producing lock core products, door locks, smart locks, hotel engineering locks, smart home products and intelligent control systems at all levels. Have a complete production chain, excellent technology, good reputation and good sales.