| 摘要 |
PURPOSE: A security mine is provided to secure life and asset safely from a crime while give a beauty effect by inserting a drawing on a cover body. CONSTITUTION: A security mine is installed in a gas pipe and a pipe line, and it turns on an alarm lamp and outputs an alarm when being is pushed by a hand and a foot. The body and cover of the security mine is manufactured by acryl, plastic, and aluminum. The body of the security mine and the size of the cover are three types such as 1M, 1.5M, and 2M. |
