... OEM projects STEEL STRUCTURE DRAWING: WE HAVE A PROFESSIONAL TECHNICAL TEAM THAT CAN PROVIDE YOU DESIGN, STRUCTURE DRAWINGS, 3D PICTURES, ... 5kn/m2 Send an inquiry to inquiry@putianhouse to get a quotation (3) Coastal (high wind speed) Steel Structure Warehouse Main ... Wind resistance rolling door (within 15m2) Window Alu. Alloy (can use with skylight) Usage Warehouse, workshop, shopping mall, exhibition ...