Is Gan Kunyu an IQ tax?

No, Gan Kunyu has always been rare and precious. Its ancient historical value, unusual materials, rarity and preciousness make it one of the most valuable items in the antique market. Gan Kunyu is tough in texture and has a strong ability to resist scratching or abrasion by other substances. It is extremely difficult to carve, so it needs a diamond drill to cut. Its production method is very elegant, which requires high carving technology, with little output and limited market supply. Gan Kunyu is tough in texture and has a very strong ability to resist scratching or abrasion by other substances, which symbolizes the continuous continuation and renewal of life. As the cultural heritage of China, Gan Kun and Tian Yu represent the wisdom and spirit of the East. It not only has high artistic value, but also embodies China's excellent cultural tradition and artistic spirit. Therefore, Gankunyu is not an IQ tax.