Russia has finally delivered four Sukhoi Su-35 fighter jets to China after a delay of two years. Moscow had feared that its fifth generation jet will loose value after Chinese military unveiled its J-20 stealth fighter. The delivery was made on December 25, a news portal of the People's Liberation Army reported.'<br/><br/>The Su-35 is an advanced version of the Su-30s operated by the Indian Airforce.Since the debut of the China's stealth fighter J-20 fighter at Zhuhai Airshow, procurement of the Su-35 fighter jets has gone quite smoothly.<br/>Some say this is the outcome of the close relationship between China and Russia.<br/><br/>However, Russia did not change its stance on the export of the Su-35 until the J-20 fighter was unveiled, state-run People's Daily reported.'<br/>Russia believes that with the commissioning of the J-20,the Su-35 will soon lose its value in the Chinese market.While China made advances in manufacturing of new type of fighter jets, it is still dependent on Russia for engines aswell as avionics.