Shandong Yuyun Sanhe Machinery Co.,Ltd ,is biggest and the most professional manufacturer of ventilation,cooling, humidification and heating equipment in Asia. Our company was established in the year of 1996 and located in Qingzhou city, Shandong Province,China. The whole company occupies 40,000m2 in which the workshop is 30,000m2.Our company has about 60series over 200 varieties of products including poultry fan, negative pressure fan, exhaust fan,gardening fan, circulation fan, cooling pad and heaters.The working team has more than 300 workers including 60 engineers and 6 senior mechanical engineers.As the No.1 ventilation equipment manufacturer in China, we have more than 20 years of professional design and production experience, the workshop equipped with the most advanced CNC production lines and laser cutting machines, top quality level in the industry. Our company products have passed “CE”, “CCC”, “ISO9001” certification and have been exported to more than 70 countries in the world. The annual output reaches to 70000 sets in ventilation series, 2600sets in heating/drying series ,Annual sales over $30 million.Our company is a high-tech enterprise which includes designing, manufacturing, installation ,sales and after-sales service, we have strong technical strength and have established long-term and close cooperation with NanJing University, Xi’an Jiaotong University, Shanhai Polytechnic University, Huazhong University of Science and Technology, creating good platform for the company technological innovation, product research and development. Our company have professional and strict management of parts control which guarantees all the parts are perfectly packed, assorted and labeled.Company Business Principle: All for customers; For all customers; For customers’ all.Marketing Conception: Customer is supreme, Quality is first, Service is vital.Company Value: Respect, Sincerity, Communication , Mutual benefit, Mutual development.