Incheon (South Korea) (AFP) - Unheralded Zhang Mengyuan stunned hosts and favourites South Korea Saturday as China swept the women's 10 metre air pistol titles on day one of the Asian Games.Zhang, who finished 20th at this month's world championships in Spain, beat Korean favourite Jung Jee-Hae into second spot in the individual event after helping China win team gold.Shweta Chaudhry of India picked up the individual bronze ahead of China's Zhou Qingyuan and reigning Olympic champion Guo Wenjun.The Chinese trio of Guo, Zhang and Zhou had earlier combined to snatch the team gold, the first title of the Games, ahead of the Koreans who wound up fourth.Taiwan were second and Mongolia third in the team event.