Compared with the traditional process (welding, viscose), the tie nail connection has the following advantages: 1. Low energy consumption. 2, cheap and durable, simple structure, easy to maintain. 3. The joint has a beautiful appearance and no surface treatment is required. 4, high connection strength, connection point quality can be no damage detection. 5, the process is simple, do not need pre-treatment or post-treatment (such as punching, surface treatment).