Our company is located in Qingzhou ,Shandong Province., a developing city with long history.Company has strong technology strength, and hasestablishedlong-term close cooperation with Nanjing University, Xi'an Jiaotong University, Shanghai University of Technology, Huazhong University of Science and Technology and some other domestic institutions which have created good platform for the company's technological innovation, product research and development .In present, company has the products of poultry fan, negative pressure fan, exhaust fan, green house fan, circulation fan, cooling pad, automatic fuel, coal, gas, electric heater, dryer which contains 60 series over 200 varieties of specifications. The company has been a scientific-management ,well-operating cooperation in the industry