發送短信 : Lightweight bricks made of diatomaceous earth, lime and gypsum

  _____     ______    ______   _    _     ______  
 / ____||  /_   _//  /_   _// | || | ||  /_____// 
/ //---`'   -| ||-   `-| |,-  | || | ||  `____ `  
\ \\___     _| ||_     | ||   | \\_/ ||  /___//   
 \_____||  /_____//    |_||    \____//   `__ `    
  `----`   `-----`     `-`'     `---`    /_//     
                                         `-`