The Shanghai Book City project has undergone comprehensive transformation in insulation, doors and windows, photovoltaics, energy storage, heat recovery, etc., and several core technology systems have been identified: electric skylights on the roof to enhance natural lighting, nano water ion air purification, photovoltaic integrated design, Fiberglass reinforced polyurethane profile triple glass exterior windows, etc.

Fiberglass reinforced polyurethane materials use fiberglass as the reinforcing material and polyurethane resin as the matrix resin. The profiles are prepared through the pultrusion molding process. They are a type of material that is widely used in the field of curtain walls, doors and windows.