... of the project, low cost, practical, artistic, fashionable and durable; What's more, can reduce the pollutions to the environment. 1 ... , moisture-proof effect, which saving a lot of energies. 4) What's more, it used widely, such as monolayer workshop, storage ... bolt.3. The beams and columns, beams and beams are connected with high intensity bolts.4. The envelop construction net is made ...