The US and China squared off over a series of contentious diplomatic, economic and business disputes in a White House summit on Wednesday, in meetings that the two sides hope will stabilise fractious bilateral ties.
Presidents Barack Obama and Hu Jintao held three hours of face-to-face talks following a welcoming ceremony for the Chinese leader laid on with the formality reserved for official state visits to the US.
Under pressure to show results from the trip, the White House announced export deals to China worth $45bn, including goods and services from Honeywell, Caterpillar and Westinghouse Electric, a unit of Toshiba.
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