1
Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry, namely, unprocessed artificial resins, catalysts for use in the manufacture of synthetics and polymers, concrete admixtures, and unprocessed plastics in all forms
6
Common metals and their alloys, namely, steel; metal building materials, namely, steel
17
Plastics in extruded form for use in manufacture; packing, stopping and insulating materials, namely, polyethylene, polystyrene and expanded polystyrene; flexible pipes, not of metal; expandable polystyrene (EPS) building insulation
19
Non-metallic building materials, namely, concrete and concrete casting forms, insulated concrete casting forms; thermoplastic composite panels
37
Installation of nonmetallic and metal building materials, namely, insulating materials, concrete, concrete admixtures, concrete forms, framing materials, and thermoplastic composite panels