... the temperature coefficient (PTC) heat-sensitive material ceramic components and cellular PTC components, kaolin, benignity, white carbon black, ... cyaniding, aluminum hydroxide, additive etc, dye, powder and granule material the rapid drying Product Features:High Efficieny ... Body temperature(°C):<45Environment temperature(°C):Nature Fruit and Food Microwave Tunnel Dryer,dehydrator/ sterilizer machine