Weifang Yihe electrical appliance Co.,Ltd.is the professional manufacturer of ventilation,cooling equipment,humidification and heating equipments biggest in Asia area.It is a 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 &＃39;&＃39;china ten top... enterprise&＃39;&＃39;.Fan AAA Levels of national quality company honesty and qualitative enterpriseThe company strictly executes quality standard,and has passed ISO9001:2008 international quality sysytem certification,and allprocedures are under strict standars or according to the customers to produce and test. Our products have passed nationalCCC certification,and QCHS series exhaust fan had got approved CE certificates of LVD and EMC compliance.As the leader in this field,we are the first manufacturing company which passed the CE certification in china. The company has set up more than 200 sales branches in more than 20 provinces of the country,and the products have been exported to tens of countries and regions such as Asia,Europe,America,Australia and so on.