First: the need for cast iron sand, polishing treatment, and finally sprayed on the rust proof paint。
Second: the surface of the cast iron fence is best after pickling treatment.
Third: to regularly cast iron fence outside the dust. Soft cotton cloth used for dust removal.
Fourth: should pay attention to moisture. Acid rain in most parts of China in recent years due to rain, after the rain should immediately left the rainwater dry on the cast iron fence, although a little trouble, but this trick works well. Can make the outer layer of the iron fence is not violated.
Fifth: anti-corrosion, as far as possible to avoid acidic, alkaline chemical items exposed to the appearance of the cast iron fence.
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