Product name:Columns and BeamsSpecification: Q345B/ASTM A572,Website:http://www.transmission-towers.com, Q235B/AST A36Column & Beam: Welded or Hot rolled H-sectionSurface: Hot DIP galvanized or painted Drawings: Can be designed as per buyer's requirement Packing: As per the buyer's requirement Loading: 1X40ft GP, 1X20ft GP, 40HQ, 40OT Pls supply us the followings: (a) the building's size: Length, width, height, eave height (b) local climate: Wind speed, snow load, earthquake( take any other serious weather into account) (c) it is better for you to supply the drawings or pictures. If not, we can design for you. Our principle: Good quality, good service.Looking forward to building double win business cooperation with you.