أرسل هذا في رسالة قصيرة: Use of magnesium-silicate-hydrate (M-S-H) cement mixes in 3D printing applications

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