... .Optimized Steel Qnty, 3.Top-Gr. construction team 4.Cost Effective:900USD Our company can provide you light & heavy steel ... you complete projects including steel structure,cladding sheet, door,window etc.3.If you have the engineering drawing of ... quantity,door size,door material(6)window type(sliding window or fixed window),window quantity,window size,window material(7)roof slope you expected ...