I. Steel plates (including strips) are classified in various ways, according to different properties and uses. The following are some common classifications of steel plates:

      1. Classification by thickness

　　    - Thin plate: Usually refers to steel plates with small thickness.

　　    - Medium plate: steel plate of medium thickness.

　　    - Thick plate: thicker steel plate.

　　    - Extra thick plate: very thick steel plate. 2.

      2. Classified according to the production method:

　　    - Hot rolled steel plate: steel plate made by high temperature hot rolling.

　　    - Cold rolled steel plate: steel plate made by cold rolling. 3.

      3. Classified according to surface characteristics:

　　    - Galvanized sheet: The surface is coated with zinc to improve corrosion resistance.

　　    - Including hot galvanized sheet and galvanized sheet.

　　    - Tin-plated: surface plated with tin, commonly used in cans and other food packaging.

　　    - Composite steel sheet: with multi-layer structure, used for specific purposes.

　　    - Color coated steel sheet: with color coating on the surface, used for construction and decoration.

      4. Categorized by use:

　　   - Bridge steel plate

　　   - Boiler steel plate

　　   - Shipbuilding steel plate

　　   - Armor steel plate

　　   - Automobile steel plate

　　   - Roofing Steel Plate

　　   - Structural Steel Plate

　　   - Electrical steel plate (silicon steel sheet)

　   　- Spring steel plate

　   　- Others