19 Non metal building products, namely gypsum wallboard, gypsum lathing, gypsum sheathing, gypsum moulding, gypsum wallboard or plaster casting all for use in the drywall, lathing and plastering trade, casting plaster, wallboard panel systems comprising vinyl laminated gypsum wallboard; stucco, joint cements; baseboard; acoustic plaster; window and window sashes; stairs; doors; shutters and columns; vinyl exterior siding, and extruded cove base; gypsum plaster and aggregates; gypsum wallboard joint cement; gypsum wall board cove moulding, gypsum lath and plaster partition, gypsum wallboard partition, gypsum ceiling tile, gypsum partition tile; fiber board ceiling tile; land plaster; exterior stucco, gypsum rock, vinyl wallboard interior decorative moulding; vinyl interior siding and cladding; vinyl wall coverings; cornice mouldings; abuse resistant gypsum wallboard