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1. The Rosler R123 piano was developed at the research and development center of PETROF in the Czech Republic.And referencing the supervision of PETROF's technical staff, according to the technical documentation of PETROF company's R&D department,PETROF authorizes China Hailun Piano Co., Ltd. Produces Rosler Pianos.
 
2. Rosler piano is not only in line with the piano industry requirements, but also protects the product quality and stability by applying CNC five - axis machining bending.
 
3. The drilling work on the R123 piano iron plate, the milling of the string reinforcement and the connection between the components of the sound source are completed by the high-tech CNC control equipment. It controls the manufacturing accuracy and controls the quality of the piano.
 
4. Rosler's piano makes the assembly precision to meet industry standard requirements through the temperature control and humidity of the wood and workshops,the unique positioning patented technology and the CNC processing technology from Japan.
 
5. The piano keyboard of R123 is HAINSWORTH felt from the UK, which has good weather ability, so that the piano can be stable in different environments.
 
6. The soundboard of R123 is spruce wood sound board. The hammers felts of R123 are made from abroad, to make it soft. The ROSLAU high strings from Germany can ensure the soft tone and the good overtone of the strings while playing.
 
7. The maple hammer handle and alder hammer wood core of R123 can ensure the soft tone and the good overtone of the strings while playing.
 
8. The ribs and other wood parts of R123 are selected from various woods from northeast China. Solid wood string code is conducive to transmission of sound.
 
9. The tuning peg of R123 uses chamfer threading technology so that the tone is smoothly without noise.
 
10. The string axis of R123 is made of 18 layers of maple. And it is stable and firm.
 
11. Automatic friction of the string machine weakens the string stress, and ensures a longer and more stable tone.
 
12. Rosler R123 piano flaps system follow the traditional European design and use the wooden lever transmission structure.
 
13. Rosler R123 piano keyboard is made of European spruce wood.