life span: more than *0 years
earthquake resistance: 9 Grade
wind resistance: *6 Grade, wind speed:**0KM/h
sound resistance: external wall (**0mm thickness) is *5dB,
internal wall（**0mm thickness ) is *0dB
fire-proof performance: **4 housrs based on different indoor
design, external wall is A1 or B1 class
snow load: 0.***1.5kn/M2
