Insulation composed of ceramic particulars internally inserted in the metal structure.  
      Winding resistor constructed with filament made from Nickel-Chromium alloy 80/20 immersed in mineral oxide.  
      Metal iron or aluminium cover, with a particular mechanical machining, that permits internal insertion of the winding resistor. Insulated fiberglass electric cable for high temperature with nickel conductor.  
      Terminal board for high temperature. 
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