Our 10th Canton Fair — China's First Cleaning Drone Manufacturer Joyance Tech is exhibiting at the Canton Fair for the 10th time. As China's first cleaning drone manufacturer with 10 years of experience, Joyance Tech brings vertical facade cleaning drones designed for windows, building exteriors, roofs, wind power stations, billboards, concrete tanks, and solar panels. The drones feature radar obstacle avoidance, dual RTK centimeter-level positioning, and a high-pressure water gun with in-air start/stop. Certified with CE, FCC, RoHS, and ISO9001, they have been exported to more than 130 countries. With completed export filings, ready stock, and fast delivery, Joyance Tech offers OEM customization, free training, a 3-year warranty, and multilingual technical support.