MANUFACTURES FROM MINERAL AND OTHER SUBSTANCES FOR BUILDING OR DECORATION-NAMELY, CALCINED BRICKS, SLABS, PARTITIONS, PIPES, FLOORS FOR ALL CONSTRUCTIONAL WORKS USED FOR INSULATING PURPOSES

RAW OR PARTLY-PREPARED VEGETABLE, ANIMAL, AND MINERAL SUBSTANCES USED IN MANUFACTURES-NAMELY, ASBEESTOS, STONE, BITUMEN, CHARCOAL, CHINA CLAY, COAL, COAL TAR, COKE, CORUNDUM, UNCUTGRANITE, UNCUT LIMESTONE, UNCUT MARBLE, MICA, CHROME ORES, GRAPHITE, INFUSORIAL AND LIKE EARTH, INCLUDING DIATOMACEOUS EARTHS CONTAINING FROM 8 TO 10% OF ALUMINA, RENDERING IT PLASTIC AND BINDING BY NATURE, AND RAW OR CALCINED PULVERIZED DIATOMACEOUS OR INFUSORIAL EARTH CAPABLE OF BEING MIXED TO FORM AN INSULATION C...