... High temperature sterilizing tunnel oven. Hot Air Circulation Drying Oven, Electrothermal Drying Machine, Hot Air Circulation Drying Equipment, Hot Air Circulation Drying Machine, High ... is fully enclosed, most of the hot air is circulated in the oven, it has high heat efficiency. ... is convenient to install and maintain. This hot air circulation oven is a tray mode intermittent drying equipment that ...