發送短信 : Stabilization and solidification of metal sludges

 _    _     ______   _    _     ______   _____    
| || | ||  /_   _// | |  | ||  /_   _// |  __ \\  
| || | ||   -| ||-  | |/\| ||   -| ||-  | |  \ || 
| \\_/ ||   _| ||_  |  /\  ||   _| ||_  | |__/ || 
 \____//   /_____// |_// \_||  /_____// |_____//  
  `---`    `-----`  `-`   `-`  `-----`   -----`