During laser cutting, due to high-temperature melting and gasification, the material will deform, especially the thin plate material is more prone to deformation. Therefore, it is necessary to perform material leveling treatment before cutting to achieve a flat state.

During the painting process, the volatilization and solidification of the paint can cause stress on the surface of the parts, leading to deformation. Especially for parts coated on a large area, deformation is more pronounced. Therefore, it is necessary to perform leveling treatment before painting to achieve a flat state.

Leveling treatment can be carried out through mechanical processing, heat treatment, cooling, and other methods, and the specific methods should be selected based on the situation of materials and parts. The flattened parts can ensure their accuracy and quality, improve production efficiency and product quality.

| Materials | Length | Width | Thickness | Accuracy |
| Steel | 600mm | 220mm | 12mm | 0.05mm |
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