The second part, further discussed the history of Tai Shan Yu and the development situation and related theories, and interpretation of Taishan Yu situation specific;
The second part, to further discuss the history and development of Taishan jade situation and relevant theories to explain the specific development status and Taishan jade;
The second part, discusses the Taishan Jade's history and development present situation and the correlation theory, and the development status of Taishan jade carries on the concrete explanation;