The horse-shoe type connecting link produced by Shandong Aide conforms to the dimensional standards of MT/12718. During the manufacturing process, high-alloy steel rich in Cr, Ni, Mo alloying elements and multiple heat treatment processes are selected to ensure compatibility with the sprocket, stable operation, and thus excellent mechanical properties and fatigue life. It features high strength, reliable connection, and easy installation and removal. Coal mining units have reported positive feedback after use.