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Fire Rated Putty | Intumescent Putty Pads | Firestop Putty
赞助SpecSeal SSP4S Putty Pads by STI | 5mm Thick for 2 Hour UL and 60+ STC Ratings | Quality. Achieve 2 Hour UL Ratings and 60+ STC Ratings with Our Thick Fully Tested Putty PadsTypes: Ceilings, Floors, Walls, Theater & Studios, Doors, Reduce Flanking