... steel plates welded together, pool the insulation materials and refractory materials and bricks made of brick tie. 2.5 sensor body consists ... , use and maintenance 5.1 furnace lining baking, warm, running or shutdown within 10 hours after each process stage must be ... , valves, sensors, water and so the cracking. 5.5 holidays or special circumstances, shutdown, leaving from the melt in the furnace ...