Beijing Tongdazhongcheng Co. Ltd. Founded in 1996.Beiing Tongdada isone of the eariest industrial humidiier professional manufacturers in China.For more than a ten years,Beiing Tongdada self-accumulation. rollingdevelopment, has become only their own research and development sirengthand intellectual property righis of chinese companies In 1996,China’s frst Humidifying Barrel was bor in Beijing Tongdada. In 1999, tho first succossful production of eloctrodo-typo humidiforin 1999, through the country to detect and to meet intemational standards in 2000, adopied the lsOg001-2000 quality system certificationin 2005.Tongda electrode humidifier bulk exports io the United States or Europe, and has won praise customers StatesIn 2008,commissioned by Ministry of Construction of P.R.C to product of electrode-type humidifier China national standardin 2010,Humidricr annual output of more than 30000 unitsIn 2012,Electrode humidfier market share ranked industry leader Now the produced ofelecrode type humidifier,dry steam humidifier.high-pressure spray humidifer, high-pressure micro-mist humidiferfar-infraredhumidifer、 wet flm humidifer has great varetes whih 7 seres and more than130 specificafions.The serial products have provided supporting devices formany consiant iemperature and humidiy ar conditioner and ceniral aircondiloning manufacturers and eng neering units, both here and abroad