What is a stainless steel matte blackboard?

Corrosion-resistant matte writing board. Stainless Steel (Stainless Steel) is the abbreviation of stainless acid-resistant steel. Steel types that are resistant to weak corrosive media such as air, steam, and water or are stainless are called stainless steel; and steel that is resistant to chemical corrosive media (acid, alkali, salt, etc.) ) The type of steel that corrodes is called acid-resistant steel. Stainless steel matte blackboard is a corrosion-resistant matte writing board. A blackboard does not specifically refer to a black board. Traditionally, it is a flat writing board that can be written repeatedly with chalk. The board is hard and is mostly used for teaching. Blackboards are generally made of wood or frosted glass, and can be written on with specific writing materials such as chalk.