... project, low cost, practical, artistic, fashionable and durable; What's more, can reduce the pollutions to the environment. 1 ... 3) Besides, it has a long life-span up to 50years for use. At the same time, ... proof effect, which saving a lot of energies. 4) What's more, it used widely, such as monolayer workshop, ... roof, etc, please also inform us. 8. It's better if you have your own drawings or pictures. ...