The combined wrought iron guardrail is likely to become the mainstream. The advantages of the combined wrought iron guardrail are obvious, the cost is low, the efficiency is high, and the appearance is more beautiful. The zinc steel guardrail is the main form of the combination railing, and will replace the traditional railing in the future. The time node of the combined wrought iron guardrail can be fully quantified during production assembly. At the same time, it can reduce the labor cost, manual, and increase the number of smart devices. For individual components, it can be outsourced and produced, which can guarantee quality and quantity. Combined wrought iron fence production speed (programmed production), increased transportation speed (increased loading, on-site assembly), fast installation (easy to disassemble, non-professionals can also be installed after training). And more beautiful, the components of the combined wrought iron guardrail are mostly castings, and the style is more diverse.