Abstract: Disclosed are a composite material, a shell for a mobile device, their manufacturing methods, and a mobile device. The composite material includes: a first metal substrate (100); a first resin fiber plate (200) disposed on an upper surface of the first metal substrate; an antenna layer (300) disposed on an upper surface of the first resin fiber plate; a second resin fiber plate (400) disposed on an upper surface of the antenna layer; and a second metal substrate (500) disposed on an upper surface of the second resin fiber plate.

Abstract: A fiber-metal laminate, includes fiber cloth; a resin layer, disposed on the fiber cloth; a metal layer, disposed on the resin layer; and a plurality of chopped fibers, distributed between the fiber cloth and the resin layer; wherein each chopped fiber includes a first part inserted into the fiber cloth and a second part fixed in the resin layer. A method of manufacturing the fiber-metal laminate is also provided.

Abstract: Disclosed are a composite material, a shell for a mobile device, their manufacturing methods, and a mobile device. The composite material includes: a first metal substrate (100); a first resin fibre plate (200) disposed on an upper surface of the first metal substrate; an antenna layer (300) disposed on an upper surface of the first resin fibre plate; a second resin fibre plate (400) disposed on an upper surface of the antenna layer; and a second metal substrate (500) disposed on an upper surface of the second resin fibre plate.

Abstract: A method of inserting a brittle material into a plastic shell comprises: a) processing the brittle material, so that the brittle material comprises an embedded portion to be embedded into the plastic shell, an exposed portion to be exposed outside the plastic shell, and a positioning portion between the embedded portion and the exposed portion; b) putting the exposed portion and at least part of the position portion into a fixed mold core of an injection mold, with the brittle material being positioned in the fixed mold core by the positioning portion; and c) injecting molten plastic into the mold to form the plastic shell, in which the embedded portion and at least part of the positioning portion are embedded into the plastic shell with the exposed portion and the remaining or the positioning portion being exposed outside the plastic shell. An electronic device having the above plastic shell is also provided.