They are probably fine...and you can't beat the price!
There is no stress to speak of on the top bows and you sometimes need to tweak them a little anyway...
I think the bows from Walcks either only had primer or some OD-like paint on them...it scratched off pretty easily...
I got door frames from Beachwood and though they were powder coated that too scratched off pretty easily...
It gave them that "authentic" look!!