(1)Company profile Our company, Qingzhou Sanhe Machinery Co., Ltd, is the manufacturer of ventilation, cooling equipment, humidification and heating equipments in Asia area. It is located in Weifang city, China, integrated with designing, manufacturing, installation, sales and after-sale service. The factory occupied 30, 000sqm and the workshop area is 15, 000sqm. There is a great team with more than 300workers, 60engineers and 6 advanced engineers etc. (2)Products category It has a good connection with some top-ranking science and technology universities to improve the R&D. Until now, there is more than 60 series products, for example, Exha ... more