How many movies have Chiang Hsing-Lung and Kung Chuan-Kai collaborated on?

They have worked on 5 movies together! Their first movie together was The Sentimental Swordsman (1977) while their highest rated movie together was Full Moon Scimitar (1979). They have not worked together since Holy Flame of the Martial World (1983). They are most known for their action films together.