no website on file — from open-source research, nothing to check against
Private zangcha factory 'Helong'; founded with 2,000 yuan, grew into a leading producer of 康砖 and 金尖 in Ya'an, brand '和龙'.
website not found; QS certification, training base of Sichuan Agricultural University
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.