The laan sao will be described as locking arm. It is used to free some space from the opponent in front of the body, to build up space in which...
encyclopaedie
Biu sao is a forwardly oriented movement, regularly used under the other arm as an emergency attack. It points towards the target one wants to...
The gaan sao is a hand move that reminds of a plough. It moves downwards following the orientation line.
The scissors gaan sao is to be considered equally as defensive or offensive move. It protects the whole upper body from waist to head.