Heating element: Typically made of high-temperature resistance wires, which are evenly distributed inside the heater.
Insulation material: The heating element is surrounded by crystalline magnesium oxide powder with good insulation and thermal conductivity, which prevents leakage and efficiently transfers heat.
Shell: The shell material is mostly high-temperature resistant stainless steel, such as 304 or 316L stainless steel, which protects the heating element and insulation material.
