Employees work at a production line inside a factory exporting cameras used in mobile phones to Africa, in Shenyang, Liaoning province, October 18, 2013. China's economy grew at its quickest pace this year between July and September in a rebound fuelled largely by investment, although signs are already emerging that the pick up in activity may lose some vigour. Picture taken October 18, 2013. REUTERS/Stringer (CHINA - Tags: BUSINESS TELECOMS INDUSTRIAL)