Regarding the rust prevention treatment of iron guardrails. Here are some important considerations:

表面處理：在安裝之前，對鐵藝護欄進行表面處理是非常重要的一步。首先，清潔護欄的表面，去除污垢和雜質。然后，使用合適的工具（如砂紙、鋼絲刷等）將銹跡和舊漆層徹底清除。，涂上適當的防銹底漆，以提供有效的防銹保護。

Surface treatment: Before installation, surface treatment of the iron guardrail is a very important step. Firstly, clean the surface of the guardrail to remove dirt and impurities. Then, use suitable tools such as sandpaper, wire brush, etc. to thoroughly remove the rust and old paint layer. Finally, apply appropriate anti rust primer to provide effective anti rust protection.

選擇合適的涂料：選擇耐候性好、抗腐蝕能力強的涂料來進行涂覆。優質的涂料應具有防銹、防腐蝕和抗紫外線的特性，以保護鐵藝護欄不受氧化和腐蝕的影響。

Choose the appropriate coating: Choose a coating with good weather resistance and strong corrosion resistance for coating. High quality coatings should have rust, corrosion, and UV resistant properties to protect iron guardrails from oxidation and corrosion.

定期檢查和維護：定期檢查鐵藝護欄的表面是否有損傷或破損，如果發現任何問題，應及時修復和重新涂覆。此外，還要確保周圍環境干燥，避免積水和濕度過高的情況，這有助于減少鐵藝護欄的銹蝕。

Regular inspection and maintenance: Regularly inspect the surface of the iron guardrail for damage or damage. If any problems are found, they should be repaired and repainted in a timely manner. In addition, it is necessary to ensure that the surrounding environment is dry and avoid water accumulation and high humidity, which can help reduce the corrosion of iron guardrails.

環境控制：在選擇安裝位置時，盡量避免將鐵藝護欄暴露在潮濕、多雨或有腐蝕性氣體的環境中。如果無法避免，可以考慮增加防護措施，如使用防水涂層或添加防銹劑。

Environmental control: When selecting the installation location, try to avoid exposing the iron guardrail to damp, rainy, or corrosive gases. If unavoidable, additional protective measures can be considered, such as using waterproof coatings or adding rust inhibitors.

定期清潔和保養：定期清潔鐵藝護欄的表面，去除灰塵、污垢和其他雜質。可以使用溫和的清潔劑和軟布進行清潔，然后用清水沖洗干凈，并及時擦干。

Regular cleaning and maintenance: Regularly clean the surface of the iron guardrail to remove dust, dirt, and other impurities. You can use a mild cleaning agent and soft cloth for cleaning, then rinse with clean water and wipe dry in a timely manner.

總之，通過正確的表面處理、選擇合適的涂料、定期檢查和維護，以及控制周圍環境和定期清潔，可以有效地延長鐵藝護欄的使用壽命并提供良好的防銹保護。

In short, by proper surface treatment, selecting appropriate coatings, regular inspection and maintenance, as well as controlling the surrounding environment and regular cleaning, the service life of iron guardrails can be effectively extended and good rust prevention protection can be provided.