semi-processed synthetic polymer resins, namely, polyethylene, polystyrene, polypropylene, acrylo butadiene styrene, and styrene acrylo nitro resins, in the form of blocks, sheets, fibers, granules, powders, pastes, emulsions, and compounds for general industrial use; electrical insulating tape, building insulation, acoustical insulation barrier panels, insulating covers for industrial machinery, insulation for aircraft, insulation for underground pipes and tanks, insulation for use in constr...