4th China International Helicopter Expo to be held in Tianjin
Helicopters from Fenglei aerobatic team arrive at a base in Tianjin, north China, on Sept. 9, 2017. China's Fenglei aerobatic team will attend the 4th China International Helicopter Expo, which will be held in Tianjin on Sept. 14-17.[Photo: Xinhua]
A helicopter is maintained at a base in Tianjin, north China, on Sept. 9, 2017. China's Fenglei aerobatic team will attend the 4th China International Helicopter Expo, which will be held in Tianjin on Sept. 14-17.[Photo: Xinhua]
Helicopters from Fenglei aerobatic team arrive at a base in Tianjin, north China, on Sept. 9, 2017. China's Fenglei aerobatic team will attend the 4th China International Helicopter Expo, which will be held in Tianjin on Sept. 14-17.[Photo: Xinhua]
A helicopter is maintained at a base in Tianjin, north China, on Sept. 9, 2017. China's Fenglei aerobatic team will attend the 4th China International Helicopter Expo, which will be held in Tianjin on Sept. 14-17.[Photo: Xinhua]