Dunhuang guzheng sold by Xihu Musical Instrument Store is a product of Shanghai No.1 National Musical Instrument Factory. The product is regular, and the guzheng is of high grade and very good quality. The address is on the 3rd floor of Room C, Zone C, Building 1, Zhongfu Xihu Garden, Gulou District, Fuzhou City, Fujian Province.

The guzheng sold by Daewoo Musical Instrument Store has formal qualifications, and its products are of high quality. The address is No.65 Niumianshan Lane, Cangshan District, Fuzhou City, Fujian Province.