Building and construction materials and elements, not of metal, namely, pre-cast concrete wall forms, manufactured cement veneer for use in ceilings and floors, ready-mix concrete, concrete elements; cement; cement mixes; ready-to-use cement for building purposes

Building and construction materials and elements, not of metal, namely, cement, roofing cement, cement mixes, and non-metal slabs of cement; cement; cement mixes; ready-to-use cement for building purposes