發送短信 : 3D-PRINTED SPIRAL POLYMER FORMWORK FOR MORE EFFICIENT DEMOULDING FROM CONCRETE

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