BEIJING, April 20 (Xinhua) -- A domestically designed underwater training suit for China's astronauts was shown to the press in Beijing Friday.

The Astronaut Center of China (ACC) unveiled the suit during a summit on aerospace medical engineering. The ACC has been working on the suit since 2014.

The suit is used underwater in simulated weightlessness as part of extra-vehicular training.

China plans to start assembling its space station in space in 2020. It is scheduled to become fully operational around 2022.