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An undated file photo shows pilots of J-16 and J-20 fighters taking an oath together. China's latest J-20 stealth fighters have been commissioned into air force combat service, a spokesperson confirmed Friday. (Xinhua)
China's Su-35 fighter jets, J-20 stealth jets to maintain airspace safety
Source: Xinhua| 2018-02-10 23:26:38|Editor: Yamei
