Describir: The manufacture of glass

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