... Building 3)Modular House choose 4)steel Structure factory 5)workshop&warehouse 6)hotel 7)labor house 2.Designation a). ... simple steel rolling shutter 4.window : few c)usage : warehouse ,workshop, factory d) standard and suitable markket : africa, Middle-east B ... 4.window : Alu.alloy (or with skylight) c)usage : warehouse ,workshop, factory .super market ,mall, hall C. coastal steel structure warehouse ...