this equipment of madab furnaces to reduce the temperature has increased from 3 months to more than 3 years. the heat that comes from the furnace is controlled by these hydroelectric panels, and finally the heat that is produced and wants to go out is transferred to the outside of the complex through these ducts . the final stage of the hydroelectric panels work in companies steelmaking is a cooling system that is used in the furnace. it is mounted, considering that the fluid flows in the pipes, the welding quality, strength and welding resistance are important . the construction of the furnace cooling port in five parallel sections in order to reach the final product, it includes the body, includes the cover , the outlet duct, and the places that are in the upper part . it is done directly by the ministry of information by issuing a notice identifying the main designer and supporter of terrorist operations kerman reported that according to the announcement of the ministry of intelligence , a tajik individual with the nickname abdullah tajiki was the mastermind of this attack, who ent