Electric heating cover and electric heating board have what distinction characteristic?

Electric heating board is an equipment which USES electric thermal alloy wire as heating material, mica flexible board as insulation material and outsourcing thin metal board (aluminum board, stainless steel board, etc.) for heating. Typical applications are electric thermos bottles. Metal tubular heating elements are cast in aluminum plates or plates or welded or embedded on aluminum plates or plates to form electric heating plates or plates of various shapes. Typical applications such as electric rice cooker, electric iron, electric coffee pot and so on.

Electric heating sleeve is a kind of general heating instrument in laboratory, which is composed of hemispherical heating inner sleeve and control circuit composed of alkali free glass fiber and metal heating wire. It has the ch