Rat trap bond is also known as Chinese bond. In fact, the Chinese bond is a method used when you are constructing with bricks. Then, the bricks have a special way of placing and arranging. Generally, they are placed in vertical position and with that they leave a hollow space in the wall. Furthermore, this method is used for residence, school, office buildings and else. Mainly, their purpose is to store and hide the wires.
Rat Trap Bond Method in Construction
Finally, see the process on the pictures below. Also, if you want to read something more about this method, click the link below.