Made of steel, 1 x 1-inch square box side was covered with steel plates on all sides. Except for the above, except for the front, a solarium and a slot for a convection air flow to the inside of the oven. And inner panels to heat the size of 80 x 120 x 20 cm within a steel for pipe containing materials retain heat inside will have five floors, each floor two sides, is designed to lay the pipeline. steel square 2 x 2 inches long, 80 cm, 25 tubes, pipes and tubes, round five of the top diameter and 2 inches long, 80 cm, 25 tubes each floor five hose.
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