중국의 옥 공예품 감상

<iframe width="820" height="538" src="https://www.youtube.com/embed/UTP6YnHzw7U" title="중국의 옥 공예품" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>