"Cross Flow Fan" alternating cross-flow fan frame and the leaves have a different distinction, frame and leaves can be opened according to customer requirements into the plastic, the length to be cut according to customer requirements contained, plug types and direct wire terminals. "Cross Flow Fan" is mainly composed of the impeller, air duct and the motor of three parts. Impeller material is generally aluminum or plastic. High-strength aluminum alloy wheel, light weight, high temperature, able to maintain long-term stable operation without deformation; "Cross Flow Fan" plastic impeller by the injection mold, and then an ultrasonic welded together, generally used for low speed situations, the diameter larger.