Answer: 1. The characteristics of the metal outer wall hanging board include thermal insulation, waterproof and flame retardant, lightweight earthquake resistance, sound insulation and noise reduction, green environmental protection, beautiful and durable self-cleaning, etc.

2. Because of its simple and practical way of assembling the board, it shortens the construction period and greatly saves the construction cost. It is very safe and convenient to install and use. It is not restricted by the seasonal environment and suitable for all seasons.

3. The metal external wall hanging board is not only suitable for newly built brick-concrete structures, frame structures, steel structures, light-weight houses and other types of buildings, but also suitable for the decoration and energy-saving renovation of existing buildings and outdoor decoration.