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"China's role here is preponderant in photovoltaics. They really are the ones who set the pace in technology, the price of the panels and providing the panels," Persello said.

"Chinese auto exports are recovering after years of decline, with Egypt being one of the biggest export destinations among the Arab states since 2015," said Wang Xia, chairman of the Automotive Industry Committee of the China Council for the Promotion of International Trade, in his speech on Thursday at the conference held in the Ningxia Hui autonomous region.

"Cross-border e-commerce improves logistics efficiency and saves time," Li said. "Vietnamese customers can place orders on popular local shopping sites like Lazada and Shopee. It takes only one day to transport our goods from Hekou to Hanoi, and at most three days to reach Ho Chi Minh City.

"China's solid infrastructure construction and high attention from government authorities give the country capabilities to build a highway and develop related technologies quickly and efficiently," said Sheng Gang, chief engineer of the road design unit under the Ministry of Transport's Research Institute of Highway.

"China's steel manufacturing infrastructure is the most advanced in the world. The small and unregulated steel mills, which are producing substandard steel with high pollution, should be eliminated," Li said.