... , Width=3,4,5K Length: >=3K height=3, 6, 9 P).One floor= 3P =2.85m, two floors ... can assemble 20-30 square meters per day, on average, only six workers can finish one standard prefab ... winds of 100KM/H and Grade 7 earthquakes.6.Water-proof structure:The house design uses water- ... installation or we can send an engineer to you to teach your workers how to install the prefabricated house.12.Usage: This ...