Actress Mang Ting is actually Mable Chen (?) aka who?

[heinz Germany]

http://hkmdb.com/db/movies/image_detail ... ay_set=eng

Regarding the chinese / English article of The Chinese Dragon they "talk" about "former Shaw Star" Mable Chen as the lead actress (The complete Chinese Name should be in the Chinese article for sure) and tell her Name was changed to "Lung Kan-Yee" (found in article ??? Which should be Doris Lung Chun Er) Ok, maybe the female lead was switched later, since there is no Doris in that movie, but still I am occupied by the idea that the female lead Mang Ting could be a former Shaw Actress and what comes in my mind is Jeng Man-Jing which seems quite similar to me (opinions?).
Still we have a Mable Chen who is Jeng Mei-Kei (Hmm.. both "Jeng")