Section 05 Mineral products 25 Salt; sulphur; earths and stone; plastering materials, lime and cement 25 18 Dolomite, whether or not calcined or sintered, including dolomite roug hly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) sh ape 25 18 30 Dolomite ramming mix Commodity Code Description 25 18 30 00 Dolomite ramming mix