Copper is a recyclable and renewable resource, and using copper can reduce the demand for non-renewable resources. At the same time, copper can be used in a building for many years without failure, reducing the maintenance and replacement costs of the building, thus contributing to the environmental protection and sustainability of the building. Copper also has high corrosion resistance, artistry, environmental protection, antibacterial properties, copper longevity, applicability, is an ideal building raw materials.

The copper door skeleton is welded with national standard hot-dip galvanized pipe 3600, and is made of galvanized steel plate substrate. The steel degree, strength and corrosion resistance are more guaranteed. The surface layer is made of preferred copper, after precision machine processing, anti-oxidation treatment, pure manual assembly and other 32 processes, each process is made by senior technicians.