After several tests, Kuo found a specially flexible form of HIH steel, a suitable aluminum alloy, and soft, wind-resistant glass. Concrete was used as little as possible.
郭茂林幾經測試，找到了一種特殊的、柔軟的 HIH 鋼材來取代鋼筋。其他建材也要考慮：玻璃要柔性的，而且要耐強風；鋁合金、石棉板也經特殊設計；水泥用得極少，只在必要之處﹘﹘每層樓樓板使用。