... normally for the aim to protect steel structure components in the delivery, we suggest to use OPEN TOP ... etc. 2. Doors and windows: Dimension, quantity, position to put them. 3. Local climate: Wind speed, snow ... to use? 7. If you have other requirements, such as fire proofing, isolated roof, etc, please also inform ... us. 8. It's better if you have your own drawings or pictures. Please send them to ...