"Steel Structure Mild steel is used to make the steel structure, after which we make the windows and doors in accordance with the drawings confirmed already. Usually ribs or ridges are added under the proof panel to make the proof stronger. All these make the modular unit well suited for use in the harshest environments. They can also be customized to accommodate site-specific wind and snow load requirements and have been proven in the extreme climates of the arctic. Size We uses a “patented” design to convert cargo containers like 20ft(HC), 40ft(HC) into insulated modular units , which make them easily shipped as container. Of course, Each modular unit can be built and customized to the client rsquo;s specifications. Insulation PU spraying, EPS ,rock wall sandwich panel, plasterboard can be chosen as insulation inside. Actually insulation is not certainly must be requested if your weather is mild. option Shower, washroom, basin and so on can be finished here Electrical systems Electrical systems from basic UL/CE approved systems to complete custom industrial systems can be built into the modular units as required for individual client specifications. Commercial Units The HERO modular units can be procures as single modules for limited or single use. Multi module units can be procured and utilized as multi module facilities or larger compound structures. They can also be stacked for easy storage when not in use. http://www.binsupplier.com"