1. Heating tube material
The material of the heating tube is generally divided into ordinary, stainless steel, Teflon, nickel plating, electroplating.
2. How to check the quality of the heating pipe?
Multimeter resistance file R200, measure the resistance of the heating tube. If the measurement is resistance, it means that the heating tube is not damaged. If the measurement is not resistant, it indicates that the internal heating tube has been broken.