Aircraft manufacturer Boeing will make its first major sale to China in nearly a decade with an order for 200 planes, President Donald Trump told reporters on Air Force One on Friday, a deal he said had been made during his summit with China's President Xi Jinping this week and that could grow to as many as 750 planes. The White House has not released details of the deal, and the company itself has not commented. Boeing CEO Kelly Ortberg had joined Trump for the trip to Beijing, one of a large group of CEOs seeking to sell products and services to China. For Boeing, the deal would mark a significant breakthrough in a market that was once central to its long-term growth. Trump also said the deal would benefit General Electric , which he said would supply 400 to 450 engines. General Electric did not immediately comment on the agreement.…