… can be withdrawn only by use of a screwdriver. This group excludes : (a) Pointed screw‑nails with unslotted heads ( … in large frameworks, ships and containers). The heading excludes tubular or bifurcated rivets for all purposes ( …
… described in Part (H) below. This heading, however, excludes the following kinds of machines, which are provided … are classified in heading 84.66 . * * * The heading also excludes : (a) Ultrasonic apparatus for cleaning ( …
