Jinbao is a well respected manufacturer. Its horns are frequently rebranded and sold at substantial markups by well known US companies.
Specs:
3/4 Tuba
Key: Bb
Bore: 16mm
Bell: 380mm
Finish: Lacquered
Case: Foambody
Height: 896mm
Compare to the Allora AATU-105P Series 4-Piston Valve 3/4 BBb Tuba sold for
$2,799.99 by Woodwind and Brasswind
The Allora has a similar appearance and specs (expressed in inches rather than CM)
Legal disclaimer: No representation or promise is made that the Jinbao 520 and the Allora 105 are of the same or similar quality or performance characteristics.
A demonstration of the Jinbao 520 is at the Youtube URL shown in this listing
SHIPPING IN CONTINENTAL US $125 by GREYHOUND (REQUIRES BUYER PICKUP AT GREYHOUND TERMINAL);
LOCAL PICKUP IN BETHESDA MD ELIMINATES SHIPPING COST