Ninghang Group has built a full-cycle, one-stop, nationally networked after-sales service system for low-altitude intelligent equipment, guided by the principle of "Safe, efficient, worry-free, lifetime service." [Four-Tier Safeguard Mechanism] A four-tier safeguard of "HQ coordination + regional stations + online rapid response + on-site service": • Tier 1 · HQ coordination: Unified dispatch, standard-setting, and backstop for difficult issues from the Ningbo headquarters. • Tier 2 · Regional stations: Nearby response and rapid on-site service from regional service outlets. • Tier 3 · Online rapid response: 7x24 online technical diagnosis and remote guidance. • Tier 4 · On-site service: Certified engineers for on-site repair, inspection, and maintenance. [Full-Chain Service Scope] Factory quality inspection, new-unit delivery and commissioning, on-site hands-on training, emergency fault repair, scheduled on-site inspection and maintenance, free firmware upgrades, genuine-part replacement, annual calibration, factory deep maintenance, post-project O&M outsourced management, and year-round technical backstop Q&A. [Government & Enterprise Custom Services] Dedicated on-site O&M, 7x24 emergency response, dedicated after-sales liaison, and annual maintenance agreements — high-end customized services. [Individual & Training Equipment Services] Rapid online diagnosis, nearby-station repair, affordable genuine maintenance, and lifetime technical consultation. [Service Network] Multi-point coverage across the Ningbo headquarters, the 200-mu island training base in Shengzhou, and the Ningbo Cicheng Sports Park, enabling rapid on-site service across Zhejiang and remote guidance + designated maintenance nationwide. [Park-Specific Service] As the group's offline physical venue, the Cicheng Ninghang Low-Altitude Sports Park is staffed by professional pilots to ensure compliant, safe low-altitude flights throughout. It builds a "geofencing + 120 m altitude cap + three-tier response" 3D safety-control system.