Section 05 MINERAL PRODUCTS 25 SALT;SULPHUR;EARTHS AND STONE;PLASTERING MINERALS, LIME AND CEMENT 25 21 LIMESTONE FLUX; LIMESTONE AND OTHER CALCAREOUS STONE,OF A KIND USED Commodity Code Description 25 21 00 LIMESTONE FLUX; LIMESTONE & OTHER CALCEREOUS STONE FOR MANUF. LIME/CEMENT