Soul Brothers of Kung Fu
被迫 (original)
Two illegal immigrants meet a young kid and the three become best friends until one of them joins the Triads. Now the remaining two must fight the Triads in a battle to the death.
Starring Ho Tsung-Tao, Carl Scott, Ku Feng, Lo Meng, Yuen Biao, Paul Chung Fat, Corey Yuen, Mars, Lee Hoi-Sang
Watch "Soul Brothers of Kung Fu" on Tubi TV released in 1977. It's a action & adventure and action movie, and has a rating of 6.3 out of 10 from Imdb which is usually fine for this kind of movie, and is currently available to watch for free.