... you can inform us the followings :A)Size for the building :Length , width, heightB)Doors and windows :size ,quantities,where to be outC) ... EPS,PU,PVC or sandwich panelE)It is better for you have the drawings or the pictures4)Load: 40FT GP,20FT GP, ... .construction steel ,Cost-effective2.Hard and Durable3.Environmental-friendly4.On-site Assembly5.Energy-saving6.Easy to install7.Earthquake proofing and ...