the first camp: high-end international brands and Asian brands. Among them, international brands are mainly Steinway, Bolansler and Sailor. Asian brands are mainly dominated by Yamaha, Kawayi and Sanyi of South Korea;

the second camp: domestic national brands with generally good quality and relatively cheap prices. Mainly to the Pearl River, Helen, the Yangtze River, Xinghai, etc.

the third camp: brand with miscellaneous brands, in fact, there is no brand.