Wang Guoxing, a famous erhu maker, is a judge of the National Best Erhu Competition. He has won the gold medal of the National Erhu Production Competition for two consecutive years. His father is Mr. Wang Ruiquan, who is respected as the "King of Chinese Erhu", and is also the only master luthier in the history of Chinese erhu production who has won the highest honor. Wang Guoxing learned art with his father in 1980, inheriting and carrying forward Wang's exquisite erhu "skin" and "chambering" production skills, and his works have been selected as excellent products for many times, and are the royal brands of contemporary erhu players Min Huifen and Deng Jiandong. In 1999, his top work was purchased by Mrs. Lee Kuan Yew for up to 1 million RMB. At the 2nd National Best Erhu Selection Conference, Wang Guoxing's elaborate old mahogany best erhu was signed and recognized by 30 domestic first-class erhu players, and the market reference price of up to 182,600 yuan was formulated. In order to improve the popularity of erhu, Wang Guoxing created the trademark "Guorui", specializing in the production of erhu, flat tube erhu, front eight back round erhu and other series of huqin. The most representative is the professional erhu of the old mahogany with skin, the price is about 7,500 yuan, the use of high-quality old mahogany is handmade, the sound quality is beautiful and full of charm, it is the best choice for playing classical folk music.