Cuaj hlis 2021
Daim ntawv cog lus peev tau kos npe nrog tsoomfwv Yucheng.Nrog kev nqis peev 250 lab yuan, Ib qho chaw R & D thiab lub Hoobkas, npog thaj tsam ntawm 21 ev kawj, tsom mus rau Suav cov tshuaj rho tawm thiab cov roj camellia series cov khoom yuav tsim.