1.The characteristic, structure, raw materials, equipment, process, cost and applications of arched colour plated roofing are introduced. The foams act as insulator, seal and waterproofer in roofing.
1.简要介绍了用泡沫塑料、
封、防水的拱形
钢屋面的特点、
、
料、设备、施工工艺、生产成本和应用。