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Old 10-01-2020, 08:33 AM   #9
wga
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Join Date: Jul 2010
Location: Yorba Linda, CA
Posts: 900
Default Re: "Poly" brake lines...

Goggle it

Underneath the PVF-coating is a double-wall, low carbon steel, copper brazed tubing which meets all international and U.S. requirements for brake tubing. The difference being that Poly-Armour offers 30 times the corrosion resistance of galvanized steel alone.
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