BUILDING MATERIALS, NAMELY, PREFABRICATED COMPONENTS MADE OF PRESTRESSED OR REINFORCED CONCRETE USED PRINCIPALLY IN FLOORS, FRAMES, WALLS, RAFTERS, STAKES AND VARIOUS PALINGS OF CONCRETE FOR BUILDING AND AGRICULTURE; NATURAL AND ARTIFICIAL STONE, CEMENT, LIME, MORTAR, PLASTER AND GRAVEL; PIPES OF EARTHENWARE OR CEMENT; AND PORTABLE BUILDINGS

'agricultur':28 'artifici':31 'build':1,26,46 'cement':33,43 'compon':5 'concret':11,24 'earthenwar':41 'floor':15 'frame':16 'gravel':38 'lime':34 'made':6 'materi':2 'mortar':35 'name':3 'natur':29 'pale':22 'pipe':39 'plaster':36 'portabl':45 'prefabr':4 'prestress':8 'princip':13 'rafter':18 'reinforc':10 'stake':19 'stone':32 'use':12 'various':21 'wall':17

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