The hyenas mainly operate the highly marketed “cacio, yamaha” piano worldwide; the well-produced german “schimmel schummel” piano in europe; the german national treasure “bransler” and the series of brands “heisler”, “omelle,” “seller”; the 100-year austrian brand “helen austria vendron” piano; the full-earth “belz” piano and the manual artistic piano designed by the profession for the performers, the royal grameen piano; the excellent japanese brand “cacio”, “yamaha”; the national brand “helen”, “imamson” and other digital electronic instruments; and the large and small musical parts of the jiangsu “fonling” guangzhou “yu”, “ago”, and “king” and “weiber” rivers in shanghai; and the “damte” drums in tianjin, as well as of various types of brands, such as the “sing angel” and “anomar”. It also sells books of music materials, teaching audio-visual products, musical works, and so on. In addition, we are involved in artistic services such as piano tunes, instrument overhauls and so forth, to facilitate a wide range of customers. For a long time, the quakers have been guided by the principle of “good faith, good service” and good faith has won not only the trust of their customers but also the favour of various units and groups. We have won several tenders for the purchase of music equipment in the nanchang municipality and in schools, colleges and schools and kindergartens. Sales performance has steadily increased over the years, relying on professional quality and sound after-sales services。