Qingzhou City Huinong Machinery Co., Ltd., located in Qingzhou, Shandong Province, is specialized in production of aeration-cooling and temperature-controlling equipment. After several years' development, we have formed a certain scale in the production of exhaust fans. At present, our company mainly produces exhaust fans used in graziery and gardening, cooling pad, automatic oil-burning heating machine, automatic coal-burning heating machine and electric blower fields. We offer more than 10 series and over 100 varieties of products. Boasting tremendous technological strength, we can reach the goal of 30,000 aeration-cooling machines and over 2000 heating machines every year. Besides, we hold a patent of water heaters. Our products are widely used in agriculture and industry ventilation cooling systems and heating systems. Our factory has passed ISO9001:2008 international quality system certification and European CE certification, and all procedures are under strict standards or according to the customers' demands. The marketing rate of our company grows fast in more than 20 provinces of the country, and the products have been exported to tens of countries and regions such as Asia, Europe, America and Australia. We always insist on the principle of "Service Supremacy, Quality Primacy" to provide high quality products and best service for the society.