Black can feigao?

HI
There has been a discussion on our rc forum about feigao motors. One side said there isn't any " feigao sensorless 540XL size motor" with a black can as the other side said feigao produced black can 540xl size sensorless motors before but they don't produce them anymore. Question is simple: did feigao ever sell 540xl size sensorless motors (these details are important for us:)) with a black smooth can with the brand name feigao on it?
I sent same question to feigao but couldn't get any replies:(