Silk was historically one of the most important products exported out of China.
Explanation:
In the ancient world, the most important trade route connected China to the European and middle Eastern world via India and the central Asian region and it was known as the Silk road.
So the importance of silk in Chinese trade has been paramount enough for China to be known for the production of the exquisite and prized material that cannot be found anywhere else.
It has been the backbone of Chinese economy historically and established the great trade routes that still benefit china.