1, each processing one kind of spiral duct diameter must be used corresponding to the size of the tube model, with the diameter of switching and adjustment simple and quick, pipe size and stability, sealing performance, and forming good effect. Depending on demand and the length of high-speed synchronous automatic cutting systems or rolling scissors cutting device. 2, each processing one kind of spiral duct diameter must be used corresponding to the size of the pipe mold, pipe mold used for the steel, aluminum molds than the strong, durable, forming stable, high-speed circular saw cutting system automatically.
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