38012010 -- Colloidal graphite in suspension in oil; semi-colloidal graphite
29161300 -- Methacrylic acid and its salts
84561110 --- Of a kind used solely or principally for the manufacture of printed circuits, printed circuit assemblies, parts of heading 8517, or parts of automatic data processing machines
50072071 ---- Printed
82079050 --- Gear-cutting tools