SHANGHAI -- Chinese President Xi Jinping has sent a congratulatory letter to the China Quality Conference, which opened Friday.

Xi said he hoped attendees from various countries could share their insights on the international quality trend and experience in quality management.

First held in Beijing three years ago, the two-day conference aims to promote quality cooperation.

"Thousands of years ago, Chinese quality goods including silk and porcelain went to the global stage, which facilitated exchanges between civilizations," Xi said. "China pays high attention to quality and will strive to provide the world with better products and services."