75191160
Nov 1, 1996
Mar 10, 1998
non-metallic building materials, namely, artificial stone, concrete bins, building stone, bunkers ceilings, cement coatings, cement posts, cement slabs, cladding for a building, concrete, cornices, fireproof cement coatings, floors and floor tiles, gypsum, huts, lintels, luminous paving, paving slabs, posts, roofing, roofing slates, silos and walls
Nonmetallic Building Materials