The open metal curtain wall derived from Europe in 1980s belongs to mature envelope systems and has been applied on numerous projects in all continents; it is one of the most common systems for architects and contractors to select the wall face systems.

The system adopts the rainscreen system; the rainscreen principle is regarded as the best method to construct watertight, weathering and durable exterior protective systems.

The open metal curtain wall is gradually being recognized in China, and has been applied in all landmark buildings, subway, airport terminal fields.