Our Bidragon's modern silos have exceeded these demands. Our silos eliminated the API exterior flange, which removes the leak source. We increase the silo’s plate thickness without adding extra stiffeners. These silos use the best powder coat system which provides complete coating wrap-around on steel for lasting storage. We adopt the state-of-the-art technology to ensure a safe field construction process, as well we create a symmetrical design by aligning vertical seams. At the same time we use a length times height panel equation, similar to what is used in a field-weld construction.