Glass magnesia polished plate (also known as polished plate) is a kind of flame retardant inorganic composite plate, which belongs to a new building material. It is widely used in the construction field because of its non combustion and strong characteristics.

Sanding board is widely used as fireproof floor. It has the characteristics of fire prevention and flame retardant, waterproof and moisture-proof, insulation, sound insulation, light weight and green environmental protection.