Non-metallic building materials, namely, portland and mortar cements and other cementitious and pozzolanic materials, namely, slag cement, fly ash and natural and blended cements; and aggregates, namely, sand, gravel and limestone

Non-metallic building materials, namely, porter and mortar cements and other cementitious and pozzolanic materials, namely, slag, fly ash and the like; and aggregates, namely, sand, gravel and limestone

portland and mortar cements; ready-mix concretes; aggregates; namely, sand, gravel and limestone; and concrete products; namely, pipe, manhole covers, bridge structures and beams, noise walls, burial vaults and boxes for conveyance of water and sewage

portland and mortar cements; ready-mix concretes; aggregates; namely, sand, gravel and limestone; [ and concrete products; namely, pipe, manhole covers, bridge structures and beams, noise walls, burial vaults and boxes for conveyance of water and sewage ]

Cement used by manufacturers of cement blocks

cement used by manufacturers of cement blocks