Product Name: DamperPlace of Origin: ChinaThe damper we produce mainly used for industry,which has the level as Class 1.The quality of the damper is reliable and durable and it is easy for operation. The blade of our damper will increase the sealing character compared with the damepr of the same kind,which has been presented patent right for its unique design. The shape of the damper can be changed according to customer\'\'s requiremets. It also has following features:delicate structure,easy installation,smooth surface,and good design. They can be widely used in the cleam room,AHV,MAU and RCU.