Regularly clean to maintain the surface's cleanliness. When wiping, only use soft fabrics like muslin or cotton threads to avoid scratching the beautiful surface of the greenery barriers. Regardless of how severe the contaminant being cleaned, 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 barriers on all sections to prevent damage.

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

4. Be mindful of moisture prevention. If it's just normal outdoor humidity, you can be at ease with the anti-rust properties of green barrier facilities. In case of heavy fog, use a dry cotton cloth to wipe away water droplets from cast-iron walls; during rain, dry the water droplets promptly after the rain stops. Due to acid rain occurrences in many parts of our country frequently, dry the remaining rainwater on cast-iron walls immediately after the rain.

5. Outdoor dust is escalating, accumulating on wrought iron fixtures. This can tarnish the glory of cast iron fences, leading to the deterioration of the protective coating. Therefore, it is advisable to regularly wipe outdoor cast iron fence fixtures, typically using soft fabric materials.