What are the auction platforms for calligraphy and painting?

Hello, the platform of calligraphy and painting auction is: 1. As the earliest and largest online auction trading platform in Chinese mainland, Yabao Auction Network has created a domestic C2C Internet business model. 2. China Painting and Calligraphy Auction Network China Painting and Calligraphy Auction Network provides China painting and calligraphy auction information, China painting and calligraphy auction preview, China painting and calligraphy art transaction and China painting and calligraphy collection auction. It is the most authoritative auction website for art collection in China. 3. Yachang Art Network Yachang Art Network is a world-renowned art authoritative portal and an important application platform of Yachang Art Database. Covers painting and calligraphy auction, art investment, antique trading information in galleries, etc. , is a trading exchange platform between investors specializing in the collection of credit services. For reference.