no website on file — from open-source research, nothing to check against
Collectible teapot brand 'Canghu Tianxia'; wide range of Yixing zisha from entry-level to collectible grade, top on JD/Tmall.
site not found; one of the leaders in online zisha sales in China
The source export carried a verification date of 2026-08-16 — later than today, so the check could not have happened. The mark was removed; the original value is kept in the data.