We QingZhou Ventimax Equipment established in 2010. We produces push-pull type and swung hammer type exhaust fans, butterfly and shutter cone fans, cow house hanging fans, non power roof fans,cooling pads, air cooler and other ventilating and humidifying equipment; it also manufactures automatic heating machines, manure scraper machines,automatic feeding and drinking systems, battery cages etc. The above products can be used in various types of buildings as Green house, Poultry house,Diary farm, Industrial workshop etc. We have professional staff to deal with the matter which is appeared in the process of using .