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Metal pins, hangers, and screws for use in and around exterior walls and concrete floors in multi-story construction as part of a fire insulation and protection system

Acoustical insulation, sound absorbers and diffusers for building construction, mineral wool for use in perimeter insulation systems of multi-story construction, fire insulation and protection system in the nature of fire curtains made from non-inflammable and flame resistant materials, impaling metal pins, hangers and screw like attachments for use in and around exterior walls and concrete floors in multi-story construction, all sold as a unit