Symmetrical turnout, branching off from the main line into two tracks on either side. The parts of the turnout are symmetrical with the diverging angle, both curves have the same radius, and there are no straight or lateral directions, ensuring identical running conditions on both sides.
The symmetrical combination switch is a type of switch for narrow-gauge railway tracks in Chinese coal mines, serving as the basic equipment for connecting railway lines. Switches come in various types, with the common single-switch being the most prevalent. It consists of three units: the switch machine, the connecting part, the frog, and the guard rail. The switch machine includes the main rail, the point rail, and the switch mechanism.