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WB FD-P 8550 Series Recessed Fire-Rated Aluminum Floor Hatch for Concrete or Tile - 30 x 30 - WB Doors
טוויטר \ Bilco UK בטוויטר: "Our industrial-grade BL-ZBOX FR Retractable Ladder is supplied with fire-rated timber lining and trapdoor which encloses the ladder from the underside. It is designed for use with
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