The utility model relates to a combined material bicycle does not have drop application sandblast sign. Include through sand blasting machine atmospheric pressure 4 6 atmospheric pressure mpa sets up the 60# english sand bed of the logo sign shape on the automobile body, set up molecular weight 7000 on this 60# english sand bed 8000 linear chain grease layer. 60# english sand bed is arranged in on the frame. This no drop utility model is that the technology form of using the sandblast replaces traditional mode of spraying paint, makes bicycle frame and logo sign realize no drop, and this utility model is applicable to combined material bicycle frame and accessory outward appearance logo sign, can both realize not having the application outward appearance of drop. Very big degree was brought to the outward appearance that makes combined material bicycle product in vision and feel promotion, the main embodiment on the feeling of touch frame outward appearance logo, the experience that brings smooth smoothness.