T30/C series are based on the type of 30k4-ii and featured by rational structure,low noise,high efficiency,high blade strength and etc.The series cinsist of common type and open type,which are used for ventilation and pipeline compression in industrial pipeline,to supply and exhaust high temperature gas and gases no with oil,water and dust.The gassed should be ono-flammable,nin-corrosive with the temperature no higher than 50℃.