Static mixer, also called mixing tube, mixing head, AB glue mixing tube, disposable static mixing nozzle, dispensing nozzle, is a new technology product applied in multi-fluid screw mixing. The plastic static mixer is composed of a series of upper, lower, left, and right helical blades, which are sequentially arranged in a spiral casing. It does not need to be driven by an external force, it only uses the fluid itself to pass through the screw mixer to perform continuous mixing cutting and overlapping, and convert two or more materials into a uniformly mixed liquid. According to the usage of the machine, it is divided into dynamic mixing tubes and static mixing tubes.