Color

The RD series upright pianos are upgraded version of the R series pianos, and the RD series upright pianos have iron plate that is cast with higher precision.
 
Thanks to the high precision of the casting process, the RD series upright pianos have the same design as the PETROF's classic honeycomb iron.
 
The design curves of the RD series upright pianos are smooth and beautiful.
 
R series, RD series, and RS series upright pianos have these major technological advantages:
 
Positioning hole technology invented to ensure assembly accuracy, automatic friction stringer patent to improve pitch stability, Germany imported RöSLAU special high-grade strings, aluminum alloy solid wood multi-layer plate adjustment file, European cartridge type mute system, AAA  Spruce wood soundboard, high-quality solid color wood back frame structure, European traditional solid wood flap linkage system, bass string pillow button design, wood keyboard, keyboard cover safety descent.