Abstract: A multiple composite-layer chopping board made from heterogeneous materials is configured to extrude a successive substrate in a width by using an extruder. The successive substrate is punched to form multiple rectangle plates in a desired size by way of a punching mold. The multiple rectangle plates are moved into a milling machine to be machined four corners of each of the multiple rectangle plates and to trim a groove of a first top face, thus producing the multiple composite-layer chopping board.

Abstract: A method of making a multiple composite-layer chopping board from heterogeneous materials is configured to extrude a successive substrate in a width by using an extruder. The successive substrate is punched to form multiple rectangle plates in a desired size by way of a punching mold. The multiple rectangle plates are moved into a milling machine to be machined four corners of each of the multiple rectangle plates and to trim a groove of a first top face, thus producing the multiple composite-layer chopping board.

Abstract: An anti-slip and safe chopping board structure contains: at least one top board, at least one bottom board, at least one reinforcement layer, and at least one anti-slip fringe. A respective one reinforcement layer is defined between a respective one top board and a respective one bottom board. The respective one anti-slip fringe is injection molded around peripheral sides of the respective one top board, the respective one bottom board, and the respective one reinforcement layer. The anti-slip fringe includes an extension extending along the peripheral sides of the respective one top board and the respective one bottom board and the respective one reinforcement layer. The respective one anti-slip fringe includes a covering portion, and a highness of the extension of the respective one anti-slip fringe is higher than a highness of the respective one top board and the respective one bottom board.