JRF Series Hot Air Furnace 1.The furnace uses the ... 2.Diametral of exterior barral 1280 JRF-1 JFR Series Hot Air Furnace Specifications1.The furnace uses the high ... , feed, fruit, de-watering vegetable. mushroom, edible fungus, tremella, tea, tobacco leaf, other farming products, food, medicine, chemical raw material ... is the chain-furnace arrangement-spec combustion device. JRF Series Hot Air Furnace