Abstract: A miniature toy vehicle serviceable as an eraser and a pencil sharpener is primarily composed of a chassis and a housing combined thereto. A sharpener base for being screwed with a blade is provided at an appropriate position on the chassis, while a cone hole is provided at the side of the sharpener base for receiving a pencil to be sharpened. The front end and the rear end of the chassis are provided with respective wheel axles, the two ends of which are provided with tires, while a driving device is combined to the front or rear wheel axle, for moving on a plane. The housing is made of an eraser material, the side of which has a through hole corresponding to the shape of the cone hole at the sharpener base, thereby the housing can be combined to the chassis to form a toy vehicle.

Abstract: A miniature toy vehicle serviceable as an eraser and a pencil sharpener is primarily composed of a chassis and a housing combined thereto. A sharpener base for being screwed with a blade is provided at an appropriate position on the chassis, while a cone hole is provided at the side of the sharpener base for receiving a pencil to be sharpened. The front end and the rear end of the chassis are provided with respective wheel axles, the two ends of which are provided with tires, while a driving device is combined to the front or rear wheel axle, for moving on a plane. The housing is made of an eraser material, the side of which has a through hole corresponding to the shape of the cone hole at the sharpener base, thereby the housing can be combined to the chassis to form a toy vehicle.

Abstract: An art wall painting curtain structure includes a plurality of supports, an operating cord rotator, a rotating base, a curtain cloth and a plurality of roller tubes. The tip of the curtain cloth is engaged in a roller tube, and the two ends of the roller tube are moveably and pivotally provided the operating cord rotator and the rotating base, respectively. Upon being further connected to the L-shape supports, the art wall painting curtain according to the invention can be fastened to the wall. The bottom of the curtain cloth is engaged in another roller tube. As the curtain cloth is manually painted an elegant oil painting artwork, when the curtain cloth is drawn downed, it not only can serve as an artwork, but also a sunshade.

Abstract: A rotary kiln for calcination of light aggregate cement comprises a calcination kiln body, a heavy-oil combustion device, and a cooling device, wherein the calcination kiln body is formed in a U-turn for saving construction site and is composed of a feeding entrance at its upmost end, a product exit at the lowest end, and a plurality of revolving segments varied in caliber by segment so as to raise the calcination efficiency, save construction expenditure, and meet environment requirements.

Abstract: A foldable stroller includes: a frame consisting of a pair of handle bars, a plurality of wheel bars pivotally secured to the handle bars having a plurality of wheels rotatably mounted on the wheel bars, a pair of seat bars pivotally connected with the wheel bars for supporting a seat, a pair of bottom struts diagonally pivotally secured on a bottom portion of the stroller and a pair of back struts diagonally pivotally secured to a back portion of the stroller for foldably linking the wheel bars and handle bars; with each bar or strut made of plastic-clad bamboo strip for preventing moisture corrosion, for comfortable seating and ergonomic handling.

Abstract: A collapsible box includes: a bottom panel, a front panel, a rear panel, a left-side panel, a right-side panel and a top panel for forming a box of parallelepiped shape, each panel consisting of a plurality of bamboo strips juxtapositionally connected with one another by at least a fastening member transversely linking the bamboo strips, each panel having at least a reinforcing rib secured with the plurality of bamboo strips and each panel having a pair of opposite end portions each forming an acute angle of 45 degrees, whereby upon folding of the two neighboring panels, the two acute angles of the two neighboring reinforcing ribs will form a right angle for forming a strong stable right-angle elbow structure of the two neighboring reinforcing ribs as assembled by the two neighboring panels; and upon tying of the fastening members on an assembled box by folding the plurality of panels, the box as assembled can be strongly durably constructed for storing foods or goods therein; and upon unfolding of the panels