I have 4 harps and what information I can give you is as follows:

1)Marine Band (Horner)
Made in Germany
Most expensive (Can't remember cost)
Rated (Excellent)

2)Bluesband (Horner International)
Made in Chine
Not as expensive as No. #1
Rated ( Very satisfied)

3)Free Blues (Hering)
Made in Brazil
About the same cost as No.#2
Rated ( Didn't last as long, but good drawing on it.)

4)Delta Blues
Made in China
Cheapest ( $7.95 Canadian)
Rated Not tight enough on the draw for blues. Made well.

Except Number #1, All are made of plastic body.
Hope this helps.
Beer from Canada