Han Patriot
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I watched the documentary again, I think before this breakthrough it was impossible to single cast a >200mm long TiAl blade. German scientist used mathematical modelling to prove it was imposssible, but the Chinese side managed to produce the World's first Single Casted TiAl blade >200mm. They are supposed to finish manufacturing for RR by end 2018.I made a mistake. It is nozzle segment including several vane. Blade is usaully single piece.
Sorry for any confusion.
Btw, another breakthrough was the cooling holes laser machining process. Previously the holes were casted together when they fabricate the blades based on RR documentary. I think China managed to develop a very precise laser machining machine which even the Germans are interested.