WHAT THE JOB DEMANDS

Building materials, namely, gypsum wall boards, sheathing boards, non-metal ceiling panels, non-metal roofing shingles, concrete blocks, bricks, architectural terra cotta, clay pipes, clay roofing tile, clay floor tiles, sacked bulk clay sold in powdered form in use in the manufacture of wallboard and plastics, sacked concrete, sacked mortar for building, sacked cement stucco in the nature of cement mixes, sacked sand, sacked asphalt, and sacked lime