Abstract: A composite-metal-composite sandwich structure is employed as a housing of a mobile electronic device. A metal sheet is preformed as a desired shape with nuts deposed thereon. A composite sheet is attached to each side of the metal sheet, exposing the nuts such that other components of the mobile electronic device can be screwed on the sandwich structure.

Abstract: A printed plastic film is placed on a composite sheet material. Then, both of the printed plastic film and the composite sheet material are put in a mold. The mold is closed and heated to soften the composite sheet material, so that the composite sheet material and the printed plastic film can be attached together to form the product. After opening the mold, the product having an ornamental surface can be obtained.

Abstract: A slide block comprises a body, a block core and a fastener. The body comprises an angular hole formed on a first body surface thereof. The block core is detachably fixed on the body. The block core comprises a first core surface and a mold pattern, and the mold pattern is formed on the first core surface. The fastener detachably connects the block core to the body.

Abstract: A method for connection between composite material and the step of method between composite material comprises (a) gluing a fixing element to a mold and generating a gap between the fixing element and the mold, (b) filling a liquid epoxy in the gap, (c) contacting a composite material with the fixing element and the liquid epoxy simultaneously, (d) solidifying the liquid epoxy, and (e) separating the mold from the fixing element. Connection structure between composite materials comprises a fixing element, an epoxy, and a composite material. The fixing element comprises a first contact surface. The composite material comprises a second contact surface. The first and the second connect surface connecting each other via the epoxy are not adhered by the epoxy.

Abstract: An apparatus for making a printed spring-roll skin includes a forming drum having a circumferential heating surface to form a skin from dough, a dough feeder having an outlet adjacent to the heating surface, a scraper disposed adjacent the heating surface to remove the skin from the heating surface, and a printing roller disposed rotatably adjacent the forming drum and having a circumferential printing surface in contact with the heating surface. First and second intermeshed gears are respectively disposed coaxially with the forming drum and the printing roller so as to drive the same simultaneously. A coloring agent is supplied to the printing roller to print the drum surface which transfers a print to the skin.