[CR]coating used on the black bits of SR front derailleurs?

(Example: Production Builders:Frejus)

Date: Tue, 22 Jan 2002 16:08:50 -0500
From: "w.a. manning" <wamanning@earthlink.net>
To: classicrendezvous@bikelist.org
Subject: [CR]coating used on the black bits of SR front derailleurs?

is it anodized or some sort of paint? i would think they would use anodization, but it looks shiny - like enamel or something.