Abstract: A manufacturing method of housing structure of electronic device is provided. The manufacturing method includes stacking a first structural layer, a painting layer, and a second structural layer, wherein the painting layer is located between the first and the second structural layers. The layer stacked after the painting layer washes and squeezes at least a portion of the flowing painting layer to form a random texture pattern.

Abstract: A portable double-brush shoe polishing device includes a polish body, and an assembly comprising a press button and a polishing storage tube. The polish body is designed to facilitate holding by the human hand, and it comprises an annular outer brush at a bottom side thereof. The press button is held in the polish body in a resilient condition. The press button has a positioning rib and a curved flange formed thereon to achieve positioning. An inner brush is disposed beneath the press button and the polish oil storage tube. In use, the outer brush is used to preliminarily clean and wipe the shoe surface, and the press button is pressed to allow penetration of a suitable amount of polish oil into the inner brush which may then polish the shoe surface with an even distribution of the polish oil.

Abstract: A sole massager including a housing having a plurality of perforations, a base mounted on a bottom of the housing, a pressure regulating device installed on the base and having a plurality of sliders provided with a plurality of massaging pins aligned with the perforations of the housing, a plurality of acupoint selecting devices arranged into respective sliders, and a sole size adjusting device, whereby a user can control the sole massager to massage his sole as desired.