"Dongying Longsijia is a specialized enterprise integrating R&D, production, sales and service, mainly engaged in research and development, production, sales and technical services of high-end intelligent security products. Its main products include intelligent access control, intelligent monitoring, smart home, intelligent security and so on, providing customers with a full range of intelligent security solutions. Dongying Longsijia has a high-quality technical R&D team, which constantly develops intelligent security products with independent intellectual property rights to meet the needs of customers. Dongying Longsijia has a complete production line, which can meet large-scale product demand and provide customers with high-quality products.