Is there a special open plate for chainsaw chains?

Generally it's the 1.2 meter guide chains that have special openings, such as the Mighty Lion 92 chainsaw.

Chain saws, also known as chain saws, is a gasoline-powered portable saws, mainly used for felling and timber, its working principle is to rely on the saw chain on the staggered L-shaped blade lateral movement to carry out the shearing action. Chain saws are generally divided into motorized chain saws, non-motorized chain saws and so on.