The products can be widely used in various construction projects, to make the construction simply, to cut down the cost, to keep the corner artistic but not to be damaged. Using the corner bead, you can do the construction in steps, also can enhance the construction efficiency two to five times. The primary worker can replace the intermediate worker after using the corner bead. For example, if using the corner bead, you can make the time of the construction reduce from ten months to seven or eight months. I am sure that the corner of the wall will not split except you damage it on purpose.