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- Repair Video
- Keyboard Repair
- Reed Repair
- Bass repair
- bellows repair
- register repair
- valve repair
- Air leakage and noise
- lever maintenance
- through key maintenance
- exhaust hole maintenance
- accessories maintenance
- free bass maintenance
- Rocker maintenance
- Tone system
- Groove repair
- auxiliary piece maintenance
- Compression spring repair
- reed tuning
- key rod maintenance
- Bayan maintenance
推拉费力，漏风漏气， 不拉自鸣，闷哑串杂。
Accordion repair in Shanghai
微信：199-0176-1961 (86-21) 5671-7111
黄浦区香山路15号丙。 静安区共和新路4718号（均需预约）