Guanyu tau tsim nyob hauv Qingdao xyoo 1997, pib nrog cov khoom lag luam yas lag luam wholesale lag luam. Nrog 20 xyoo kev siv zog tsis tu ncua thiab mob siab rau hauv kev tsim qauv thiab tsim cov khoom ntim cia, cov tuam txhab tau dhau los ua tus muab kev pabcuam hauv tebchaws los tswj cov khoom siv thiab cov kev daws teeb meem.
Peb muab cov kev daws teeb meem zoo rau hauv cov ntu tseem ceeb ntawm cov thawv ntim yas, cov chaw ntim khoom thiab cov khoom sib dhos, khoom ntim cia, hnab yas, menyuam roj hmab, khoom siv rhiav thiab OEM cov kev pabcuam thoob txhua qhov