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Spiral warp is mainly used in vacuum infusion and prepreg process, providing the flow channel for resin.
Resin infusion hose -- It is made of PE and used to provide a very free‐lowing channel through which the resin is distributed near the point where the resin is first fed into the composite.
Spiral hose -- Resin flows freely through the center of the spiral tube, but just as easily out of the spirals in the side, allowing resin to be supplied all the way along an edge of the composite.
