外墙材料在保证建筑物安全和使用功能的同时,还要考虑其不受天气等外部恶劣环境的影响。在此基础上,再追求经济与美观。 欧美一些国家自40年代起,就己开发出一种实用、经济、美观的外墙材料──‘时代壳”（STUCCO）,满足了上述要求。在美国80％以上的建筑物使用了这种材料。 While ensuring the safety of buildings and the use of functions, exterior wall materials must also be considered not to be affected by external and harsh environments such as the weather. On this basis, the pursuit of economy and beauty. Some countries in Europe and the United States have developed a practical, economical, and beautiful exterior wall material, STUCCO, since the 1940s, which satisfies these requirements, and has been used in more than 80% of buildings in the United States. material.