I found no references to this, wire-carpet razor, or carpet razor. I found something for wire carpet (a special carpet with built-in sensors) - ref below - but I doubt it's waht you're looking for (seems like the kind of carpet you never cut!)

I suspect though that what's referred to is a razor, more correctly a knife for cutting carpets. Pile refers to the quality of a carpet (the thickness and luxury). Wire in this context I don't know.

Maybe this info will help a razor/carpet expert translator/contributor!