1. Before leaving the steel mill, the packaging and protective coatings of the materials are crucial measures against rust. During transportation and handling, protection of the material must be ensured, preventing damage and extending the shelf life. 2. The principles of rational stacking and advanced stacking require, under the premise of stable and safe stacking, to separate different types of materials to prevent confusion and mutual corrosion. It is prohibited to stack corrosive items to steel near the piles. 3. The storage location or warehouse for steel should be kept clean and well-drained, away from factories and mines that produce harmful gases or dust. Weeds and other debris on the site should be cleared to maintain the cleanliness of the steel. 4. Maintain a clean warehouse and strengthen the maintenance of materials.