發送短信

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| || | ||  \ \\/ //  \ \\/ //   / _ \\   /_   _// 
| || | ||   \ ` //    \   //   / //\ \\    | ||   
| \\_/ ||    | ||     / . \\  |  ___  ||  _| ||   
 \____//     |_||    /_//\_\\ |_||  |_|| /__//    
  `---`      `-`'    `-`  --` `-`   `-`  `--`

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發送短信 : A study on the manufacture of 30 ampere safety switches