Qingzhou Sanhe Machinery Co.,Ltd.is the professional manufacturer of ventilation,cooling equipment,humidification and heating equipments.It is high-tech enterprise which has a completed set of specialized designing,manufacturing,installation,sales and after-sale services.We have gotten many titles such as "China Ten Top Brands Fan""AAA Levels of National Quality Company""Honesty and Qualitative Enterprise".The company strictly executes quality standard,and has passed ISO9001:2008 international quality system certification.