... traditional concrete structure building system, the light steel structure projects have a series of advantages, such as large span, low demands on ... PU,PVC or sandwich panelE)It is better for you have the drawings or the pictures4)Load: 40FT GP,20FT ... : wind load, snow load, raining condition, geological condition, aseismatic requires.c)The dimension: length, width, heightd)The function of the building ...