Ducts, not of metal, for ventilating and air-conditioning installations; Laths, not of metal; Building material, namely, plastic webbing material used to reinforce bituminous waterproofing sheets; Drywall corner bead not of metal; Drywall repair kit for do-it-yourself use and use by contractors comprised of a 4-inch by 4-inch piece of drywall, a piece of double sided adhesive tape, and a plastic male and female brace that secures the piece of drywall between the hole and the inside sheet of drywall, used to repair holes in drywall using a brace system; Non-metal laths; Non-metal ventilating ducts
Nonmetallic Building Materials