It is the product inserted in the solid steel structure with the fo- amed polystyrene of heat shield, which is equal to the constru- ctive frame of U. S. A three big agencies, ICBO, BOCA, SBCC. It as a lightweight panel is also apt for the whole construction structural body as well as partition wall, floor & roof stuff.   Also it is widely, internationally popularized on Central and So- uth America, Europe and Asia area, especially as a structural body.