If you don't get a response, here's a read that
will give you enough info to ask serious
questions of local plating shops:

< http://www.finishing.com/faqs/chrome.html >

However, I learned the hard way on this.  I had
a seriously pitted bumper on a 911 that should
have been refused by the plating guy or perhaps
done with thick copper and polishing.
Instead, they did a lot of grinding and
polishing on the steel.  The waviness in the
finished job reflected light all over the
place--ugly.  And, something that dollars
couldn't fix.

--
pj