The sticker is imported from the United States and is specially used for Taber wear resistance tester Specimen Mounting Sheet, Square – 41/4" (108mm) square 100 pcs.
      card coated on both sides with a pressure sensitive adhesive,
      test record form printed on one side to permit using as mounting card
      
      S-37-1 Specimen Mounting Sheet, Round – same as S-37, but round 100 pcs.