So Lin Zai, Qi Rongfeng, and Zhao Shuai came to the bathroom together. It looked like an ordinary bathroom, except the bathroom door seemed like a kind of glass. Just as Qi Rongfeng was about to step in, "Wait a minute." Lin Zai said, and Lin Zai took out a head-sized Isolation Analyzer from the Jiezhi Bracelet, using it to check the door. To Lin Zai, the glass of this door was much like the glass used in the cabin door he had seen on that broken spaceship, but he was merely guessing. Soon, the Isolation Analyzer displayed that the glass of the door was made of the central isolation material of polyimide, with strong high-pressure resistance and heat resistance qualities. Qi Rongfeng was also amazed by the material used for the door. "Why use such a substance for a bathroom door?" Apparently, Qi Rongfeng understood this kind of material too, "But I came to this bathroom before and this was the door, yet not in the same situation as Zhao Shuai's just now."
