Yashodeep fabritech supplies storage tank. Tanks can be of many shapes, but large tanks tend to be cylindrical, or have rounded corners, to easily withstand hydraulic pressure of contained liquid. The special features of the storage tank are since most liquids can spill, evaporate, or seep through even the tiniest opening, special arrangement must be made for their safe and secure handling. Some storage tanks need a floating roof in addition to the fixed roof of the structure. This floating roof rises and falls with the liquid level inside the tank, thereby eliminating the vapor zone. Floating roofs are considered a safety requirement as well as a pollution prevention measure for many industries, including petroleum refining.