Shandong Yuyun Sanhe Machinery Co.,ltd, located in Qingzhou City, Shandong Province, China and established in 1999, is a professional manufacturer of ventilation and cooling system, humidufication an heating equipment in Asia. It is also a high-tech enterprise which has a completed set of specialized manufacturing, installation, sales and after-sale service. 

In present, our products contain 60 series totally over 200 varieties of specifications, such as poultry fan, negative pressure fan, exhaust fan, gardening fan, circulation fan, cooling pad, automatic coal-burning heater, oil-burning heater, gas-burning heater, electrical heater, drier and so on, which are widely used in agriculture and industrial field and applicable to animal husbandry, poultry house, livestock breeding, flowers and plants, greenhouse, factory workshop, textile, chemical, medicine, tea, vegetable storage and supermarket. 

Nowadays, we have set up more than 200 sales branches in more than 20 provinces in China, and our products have been exported to more than 50 countries in Asia, Europe, Middle East, South Africa, America, Australia and won high reputation.