Forum Discussion
ktoy
Sep 03, 2013Explorer
I thought that the FR might stand for fire retardant but will find out when I call the manufacturer. I was pretty happy to find that marking on the roof. Thanks for the help!
Update: after looking at the link you provided, I think you might be right about the reinforced fiber.
Update: after looking at the link you provided, I think you might be right about the reinforced fiber.
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