Shandong Airlines, a subsidiary of flagship carrier Air China, has announced plans to lease 10 Boeing 737 aircraft, signalling China’s continued demand for the American jets as it looks to refresh an ageing fleet.The airline will pay a total fee of 2.88 billion yuan (US$405 million), with the aircraft to be delivered in batches over the coming two years, according to a notice Air China issued to the Shanghai Stock Exchange on Thursday.The deals include 10-year leases for three Boeing 737-800...