Trade frictions with the United States and accusations of industrial espionage are set to cast a cloud over China's largest aerospace meeting this week, as suppliers consider what the country's slowing economy could mean for booming jet demand.

The biennial Airshow China, to be held in the coastal city of Zhuhai from Tuesday to Nov. 11, is traditionally an event for Beijing to parade its growing aviation prowess in front of aerospace executives, diplomats and arms buyers from over 40 countries.

But analysts say they are not expecting many headline announcements or big deals this year as a bruising trade war between Beijing and Washington and a slowing Chinese economy cause companies to be cautious.