O.k. - here's my story- my friend Mo recalls seeing a kung-fu movie with his Dad (they saw it on regular tv). His Dad has long since past and Mo wishes to find this title so he can watch it with his sons.

All I know about the film is that it IS CHINESE (with the usual english dubbing). It was made during the late 70's,or poss early 80's. It has the classic story of the young man whom loses his fathers at the hands of thugs?/ bandits?/ guards? So the young man learns some secret kung-fu technique to vow revenge for his father's death. The big stand apart for this film is that the young man practices on a special (possible metal) Wing Chun dummy- this particular dummy releases (I believe) metal balls when the proper hitting technique is applied. Once the young man has mastered the special wing chun dummy he goes on to slaughter all the bad guys. I have no idea who the actors are- sorry.

The name of the movie your friend is looking for is called: "The Executioners of Death" by Shaw Brothers starring Yung Wang Yu as the Kid Hung Wing Ting