The spring session of the 119th China Import and Export Fair opens in Guangzhou, Guangdong province, on Friday, with a focus on small and medium-sized firms.

The show, better known as the Canton Fair, has attracted more than 24,500 exhibitors, almost 90 percent of them Chinese SMEs.

On the eve of its opening, the fair's organizers vowed to help the SMEs innovate and improve their products to meet export standards.