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1. A nose hair trimmer head includes a trimmer head shell, a trimmer head cover and a moving blade component, wherein the trimmer head cover is arranged on the trimmer head shell; wherein the moving blade component, which is capable of rotating relative to the trimmer head cover, is arranged in the trimmer head shell and extends into the trimmer head cover; which is characterized in that the moving blade component includes: a blade holder, two blades and a first spring piece, wherein the blade holder has a sliding groove running through it along the direction of left and right; the sliding groove is located in the trimmer head cover, the blade holder is provided with a guiding column on the inner side wall of the sliding groove; the two blades are mirrored in the sliding groove and can move left and right relative to the sliding groove, the blades are provided with a guiding strip hole for the guiding column to pass through, a blade edge is arranged on one side of the blade; the first spring piece is arranged in the sliding groove, and both ends of the first spring piece are respectively in contact with the two blades to push the blade edges of the two blades to respectively abut against the inner side walls of the trimmer head cover.
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