發送短信 : Stabilization and solidification of metal sludges

 _    _      ___    __    __   _    _             
| || | ||   / _ \\  \ \\ / // | || | ||   ____    
| || | ||  / //\ \\  \ \/ //  | || | ||  |    \\  
| \\_/ || |  ___  ||  \  //   | \\_/ ||  | [] ||  
 \____//  |_||  |_||   \//     \____//   |  __//  
  `---`   `-`   `-`     `       `---`    |_|`-`   
                                         `-`