Russian President Vladimir Putin and Chinese President Xi Jinping sing autographs on a Haval F7 SUV car as Tula region governor Alexander Dyumin, centre, looks on during a ceremony at the Kremlin in Moscow, Russia. China's leading sport utility vehicle (SUV) brand Haval, a part of the Great Wall Motor (GWM) group, has launched the inaugural round of production for the Haval F7 SUV in the brand's new factory in Tula region.