Section 05 Mineral products 25 Salt, sulphur; earths and stone; plastering materials, lirne and cement 25 20 Gypsum; anhydrite; plasters 25 20 20 Plasters Commodity Code Description 25 20 20 00 Plasters 25 20 20 10 Of a kind suitable for use in dentistry 25 20 20 90 Other