Caswell FRD are Fire Resisting Ductwork specialists. They manufacture Caswell Firesafe® systems under licence from Firesafe Fire Rated Ductwork Limited. This licensed product has long been specified, made and installed internationally within countless prestigious construction initiatives around the world in the last 17 yrs…and its scope, use and popularity continues https://fire-resistant-ductwork-m24566.shoutmyblog.com/9651753/introducing-caswell-fire-resisting-ductwork-frd-producers-of-caswell-firesafe-systems