JRF Series Hot Air Furnace 1.The furnace uses the high ... method 2.Diametral of exterior barral 1280 JRF-1 JFR Series Hot Air Furnace Specifications1.The furnace uses the high ... heating and moisture removing for the grain, seed, feed, fruit, de-watering vegetable. mushroom, edible fungus, tremella, tea, tobacco leaf, ... is the chain-furnace arrangement-spec combustion device. JRF Series Hot Air Furnace