Wave mica heater core, so as call heating core,heating element,welding heating core,heating element, Feature 1. Selected high insulated golden mica. 2. High temperature resistant Chrome nickel heating wire or Chrome iron heating wire. 3. Best for air heating gun, hair dryer, toaster, water machine, bread maker, milk warmer and other heating appliances. 4. Please inform us your detail requirements such the the shape,the size, the power and the applicance machine of the heating elements.