People sourcing films for this purpose should choose a product from a manufacturer that can produce results for General Services Administration ( GSA ) blast ratings .
People sourcing films for this purpose check with the manufacturer that the installer has sufficient experience and knowledge to offer such products .
People sourcing films for this purpose should choose a product from a manufacturer that can produce results for General Services Administration ( GSA ) blast ratings , and check with the manufacturer that the installer has sufficient experience and knowledge to offer such products .