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Building materials (non-metallic); non-metallic rigid pipes for building; asphalt, pitch and bitumen; non-metallic transportable buildings; monuments, not of metal.
concrete, including ready mixed concrete, packaged concrete, and other concrete products, namely, slabs, blocks and bricks, dense and lightweight thermal blocks, solid and hollow blocks, block paving and paving blocks, lintels, pre-stressed lintels and floor beams, pre-cast stairs and step tread and riser units, floor tiles, walling, and concrete pipes; mortars, including sand cement mortar and sand cement screed; cement, including all astm portland cements and blended hydraulic cements; cement kiln dust and hydrated cement kiln cake; plaster, gravel, sand, aggregates and crushed rock and lightweight aggregate; sand for industrial uses, including packaged sand products; bitumen and asphaltic concrete for building; namely, bitumen blocks and bricks, dense and lightweight thermal blocks, solid and hollow blocks, block paving, pre-stressed lintels and floor beams, pre-cast stairs and step tread and riser units, asphaltic concrete paving and packaged asphalt concrete paving