Shandong Jindun Energy Conservation & Environmental Protection Equipment Co., Ltd., located in economic development zone of Qingzhou city, with 20,000m2 area, is a professional manufacturer of air condition equipment for agriculture and industry's ventilation, cooling or heating system, such as exhaust fan, cooling pad and boiler. There are more than 100 workers and 20 engineers in Jindun company. Under the endeavor and development ability, our products have been widespread used in kinds of field around China, and high praised by the customers. Such as animal husbandry, poultry house, livestock breeding, flowers and plants, greenhouse, factory workshop, restaurant, textile, chemical, medicine, tea, vegetable storage and supermarket.The company strictly executes quality standard, and has passed ISO9001:2008 international quality system certification, and all procedures are under strict standards or according to the customers to produce and test. Meanwhile, we have passed "CE" and "CCC" certificates, in the condition of no national standard and local standard, we are the sole exhaust fan manufacturing company which formulated the enterprise standard and approved by government.