68: Stone, plaster, cement, asbestos, mica, etc articles

6801: Stone setts, curbstones, flagstones (except slate) 6802: Worked monumental, building stone, articles thereof 6803: Worked slate, agglomerated slate, articles thereof 6804: Millstones, grinding stones and grinding wheels 6805: Abrasive cloths, papers etc (including sandpaper) 6806: Slag wool, rock wool, insulating minerals not asbesto 6807: Asphalt, bitumen, coal tar pitch, etc articles 6808: Boards etc of vegetable fibre, mineral binder, cement 6809: Articles of plaster or plaster based compositions 6810: Articles of cement, concrete or artificial stone 6811: Articles of asbestos-cement & cellulose fibre cement 6812: Asbestos fibre, products except construction, frictio 6813: Asbestos friction materials and articles thereof 6814: Worked mica and articles of mica 6815: Articles of stone or other mineral substances, nes 68: Stone, plaster, cement, asbestos, mica, etc articles