This Heating Tube is found under the machine Heat Chamber. The Heating Tube produces heat. This thermal treatment is required for the Heat Shrinkable Bags to reach the desired condition.
Also found on this Heating Tube is a Thermocouple Sensor. This Thermocouple connects from the Heating Tube to the Thermostat and measures temperatures in the Heating Tubes.
California Residents: read Proposition 65 .