... of fireproof door, ventilation pipes, translucent panel, window and shutter.7. All of the steel frame components may be galvanized ... any kinds of store.2. SINGLE-SPAN CONSTRUCTION. Applicable for: warehouse, sales center, factory or other construction needed large ... area of high eave.3. STANDARD-SPAN CONSTRUCTION. Applicable for: industrial large span workshop (with crane), gymnasium, ware house ...