Here is Quwa link below if u would like to read...I missed this news, if its indeed the case as you have mentioned than it's a great news which will boost Chinese Engine manufacturing in leaps & bounds.
Private Chinese company reportedly capable of producing single-crystal turbine blades for jet engines
Here is another article that mentions some other advancements...some key points and the link below...
"Engineers in China have developed new processes that can make lighter and stronger blades using a hollow structure as well as single-crystal alloys that can withstand high temperatures and a special coating to facilitate cooling."
"These advances are at the center of a possible sale to Germany along with manufacturing equipment that uses lasers to drill ultra-fine holes in turbine blades to keep blades cool by increasing air flow."
China Could Soon Be Producing Its Own Powerful Jet Engines