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- Description: PREVENT THE CORROSION OF CAST IRON GUARDRAILS To prevent rusting of cast iron guardrails, the following measures can be taken: 1. Protect the surface of the iron product from crystallization and drying; 2. Cover the steel surface with protective layer (such as painting, anti-rust oil, burning, plating, baking blue, etc.); 3. In the change of the internal structure of iron, the title synthesis just.
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