HS 690100 · CONSTRUCTION MATERIALS

Diatomite bricks and insulating ceramics in East Africa

Bricks, blocks and tiles of siliceous fossil earth for heat insulation; bought by kiln, furnace and boiler operators.

Customs description: Bricks, blocks, tiles and other ceramic goods of siliceous fossil meals (e.g. kieselguhr, tripolite or diatomite) or of similar siliceous earths