| 摘要 |
PURPOSE: A various colored chalk and a manufacturing method thereof are provided to solve a problem of changing chalks every time a user wants to change the color by having various colors in one chalk. CONSTITUTION: A manufacturing method of a various colored chalk comprises following steps: manufacturing a chalk by adding many colors; and indicating a border line which distinguishes colors. The various colored chalk prevents from the class to be cut off in the middle by preventing dropping chalks in order to change colors. |
