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"Despite rising production, both domestic and overseas demand for steel products have declined,"Wang said.

"Each day, the cars are examined before they are admitted into the center and the information is made public on our website," said Cai Zhongmin, general manager of the center, adding that some 2,000 used cars are displayed online.

"Demand in the construction industry has basically recovered to last year's level driven by new and resumed projects," said Xu Xiangchun, an analyst with mysteel.com.

"Detection capacity is the basis for the formulation of prevention and control policies, and Angola needs to continue to improve large-scale detection capabilities. Angola is confident to entrust the Shenzhen BGI Group with the construction of five laboratories, which will create a new period of opportunity to prevent and control the epidemic," Lutucuta said.

"Due to the increasing uncertainties in the global economy, including the rising trade protectionism and unilateralism, the multilateral trading system is facing severe challenges and regular international commercial activities have been disrupted," Gao said.