Domestically produced WS-10 Taihang 14.5 tons thrust class turbofan engine found in the J-11B's from above:
Various domestic turbofan engines found in Chinese fighter jets:
The People’s Liberation Army (PLA) Air Force has deployed no less than 400 Taihang engines in five air force regiments. Various types of fighter jets are equipped with the engine, including the J-11B and J-15 carrier-based fighter jets, reported China Science Communication, a news site under the Chinese Academy of Sciences. So far there have been no crashes due to engine failure among Taihang engine-equipped fighter jets, the news site also noted.
400 WS-10A have been fitted to PLAAF and PLAN latest jet fighters for years now without major problem. And new engines of different classes will be fitted to new aircrafts in time faster than you think.
Various domestic turbofan engines found in Chinese fighter jets: