A batch of intelligent robots has wowed attendees at the three-day Smart China Expo, which is being held in southwest China's Chongqing Municipality.

A robot to inspect high-voltage power lines that can roll along the transmission wires has attracted attention. It integrates rapid positioning, laser scanning and other technologies.

It can perform inspections at a high speed, while avoiding the danger of working at altitude, according to its developer.

A drain inspection robot, equipped with non-destructive inspection technologies, can work in drainage pipes, culverts and open channels.

With a high-definition camera, the robot can identify various defects, and it is safer, because it replaces manual operation underground, said the exhibitor.

Fruitful achievements

Scheduled until Wednesday, this year's expo has attracted over 500 exhibitors from home and abroad to display their cutting-edge technologies, products, and applications in smart industries and the digital economy.

Among the exhibitors, a group of high-tech companies from Singapore are seeking market opportunities at the exhibition.

Assurich Industries Pte Ltd, which has 40 years of experience in dealing with machinery sales and after-sales service in Association of Southeast Asian Nations (ASEAN) countries, is participating in the expo for the first time.

"We can help Chinese companies connect with ASEAN customers and achieve one-stop buying and selling, providing logistics, after-sales and maintenance services," said Li Junxuan, a member of the company's marketing staff.

"We are full of expectations for China's vast market," said Xu Jinsong, executive general manager at Innowave Tech, who also participated in the exhibition for the first time.

Xu said that he did not only come to find potential customers, but also to learn the needs of Chinese industrial enterprises, so to improve their technology.

According to the expo organizer, a total of 84 investment projects with contracts worth over 213.9 billion yuan (around $29.3 billion) have been signed, covering smart connected electric vehicles, biopharmaceuticals, software and information services new energy.

The expo, held in Chongqing since 2018, is a platform to promote global exchanges of smart technologies and international cooperation in this industry.

(With input from Xinhua)