Wushu Tao
(
https://www.wushu-tao.com
)
Writing sheet of the characters :
chán sī jìn 缠丝劲
(La force spiralée)
 
 
 
For more informations about these characters and their pronunciations, consult this page :
https://www.wushu-tao.com/page_ac_liste_car.php