1.double prefabricated building ,Steel structure office building,movable residential building 2.Hard & Durable 1)Item name: Steel structure building2)Specification: ... you can inform us the followings :A)Size for the building :Length , width, heightB)Doors and windows :size ,quantities,where to ... .Energy-saving6.Easy to install7.Earthquake proofing and Water proofing double prefabricated building