Rosler RD Series is based on the Rosler R Series pianos. Not only it’s design even more elegant and beautiful, but also the sound source iron plate design uses the honeycomb design. The RD series upright pianos were developed at the research and development center of the PETROF company in the Czech Republic. The RD series piano is a good choice for the users who are pursuing higher musical performance.

Rosler RS series upright pianos were developed at the research and development center of the PETROF company in the Czech Republic and were authorized under the supervision of PETROF technical staff according to the technical documentation of the PETROF company's R&D department.The design of this series of Rosler upright pianos incorporates curved elements.Not only the series is more elegant and beautiful, but also the excellent home & practice pianos.

Rosler WRS series upright pianos adopt the traditional European iron and chord row design that has passed the test of hundred years, and adopts modern soundboard radian design technology to effectively cope with climate change. The overall piano design incorporates the highly efficient and popular PETROF piano technology.

Rosler R series upright pianos were developed at the research and development center of the PETROF company in the Czech Republic and were authorized under the supervision of PETROF technical staff according to the technical documentation of the PETROF company's R&D department. The series upright pianos have excellent value for money and world-renowned reputation, as the model of home & practice pianos.