Application field: Model 9-19, 9-26 Centrifugal Blowers are generally used for the compulsory ventilation in the forging and metallurgy stoves, widely used for conveying aterials, air or other gas which may not self-ignite, do no harm to human body or is not corrosive to the steels. No glutinous matter is allowed in the gas. The medium temperature is normally no higher than 50℃ (no higher than 80℃ at most). The dust or hard grain matter contained in the medium is no more than 150mg/m3.a.