Section 05 Mineral products 25 Salt, sulphur; earths and stone; plastering materials, lirne and cement 25 13 Pumice stone; emery; natural corundum, natural garnet and other natural abrasives, wh 25 13 20 Emery, natural corundum, natural garnet and other natural abrasives 25 13 20 00 Emery, natural corundum, natural garnet and other natural abrasives Commodity Code Description 25 13 20 00 00 Emery, natural corundum, natural garnet and other natural abrasives