3M Firestop Pass Through Devices 3M fire barrier pass-through devices offer one-piece hinged metal enclosures manufactured to avoid the passage of smoke, fire and toxic gas. They feature intumescent material that expands on exposure to hazardously high temperatures.
3M fire barrier pass-through devices offer one-piece hinged metal enclosures manufactured to avoid the passage of smoke, fire and toxic gas. They feature intumescent material that expands on exposure to hazardously high temperatures.
3M -
Firestop Pass-Through Device
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