Regularly clean to maintain the surface cleanliness. When wiping, only use soft fabrics like cheesecloth or cotton yarn to prevent scratching the beautiful surface of the greenery barriers. Regardless of how severe the contaminant, no cleaning agents should be added to the cleaning solution, as they will reduce the friction between the cleaning brush and the surface, affecting the cleaning outcome.

2. Regularly clean and inspect the color steel hoarding along various sections to prevent any damage to the guardrails.

3. The application of highway isolation guardrail cleaning vehicles has ceased effective cleaning.

4. Be mindful of moisture prevention. If the outdoor humidity is normal, you can be reassured about the anti-rust properties of your green barrier facilities. In case of heavy fog, use a dry cotton cloth to wipe off water droplets from cast-iron fences; during rain, dry the water droplets promptly after the rain stops. Due to the frequent occurrence of acid rain in many parts of our country, it is essential to wipe off any remaining rainwater from the cast-iron fences immediately after the rain.

5. With the increasing dust in the outdoors, it can accumulate on ironwork fixtures, tarnishing the luster of cast iron fences. This can lead to damage to the protective coating. Therefore, it is advisable to regularly wipe outdoor cast iron fence fixtures, preferably with soft, cotton fabric.