The Guangzhou International Smart Property Management Expo, the first large exhibition since the optimizing of prevention and control measures against the COVID-19 pandemic, opened on Sunday in Guangzhou, Guangdong province.

The three-day expo, which was inaugurated by the Guangzhou Property Management Association, has attracted hundreds of property management companies from 24 provinces and cities, to showcase their innovative services in property management.

With a theme of "enabling a better life through science and technology", the expo includes an exhibition area of more than 20,000 square meters, with displays of smart technology, reconstruction of old residential compounds, robotic service, clean and green gardening and diversified business operation within residential communities.

Inside the exhibition halls, several high-tech and intelligent facilities including robots for cleaning tall building walls, atomising disinfection and indoor air sampling have been displayed.

For example, a 1.4-meter-tall and 1-meter-wide robot, developed by Lingdu (Guangdong) Intelligent Technology Development Co Ltd, which specialises in the research and development of high-altitude curtain wall cleaning robots, can climb automatically to walls of high buildings.

Its cleaning efficiency is more than three times higher than that of manual cleaning, without external water pipes, gas pipes and power supplies, according to the company.

The climbing robot has helped clean glass walls of more than 120 high buildings across the country, including iconic eastern and western towers in Guangzhou, according to the company.