Leaf leaf chain china chains are designed of interlaced plates held together simply by rivet pins. They are designed with the same high degree of precision as our roller chains. Leaf chains are utilized for applications that require strong flexible linkage for transmitting movement or lift. Specially selected steel and exclusive heat treatment assures high strength and durability. The first quantity or amounts in leaf chains identifies the chain pitch, the last two numbers determine the chain’s lacing. New applications should make use of BL series leaf chains