CSR

concrete additives and admixtures

Plastic pipes for use in gas and oil gathering, leachate collection, and in slurry, dredge, oil, water and sewage transmission, irrigation and drainage systems

Non-metallic construction and building materials, namely, concrete and cement poles, slabs, beams, panels, bricks, blocks, arches, columns, channels, conduits, manholes, tees, barriers, vaults; concrete and cement pipes for use in leachate collection, and in slurry, dredge, oil, water and sewage transmission, irrigation and drainage systems