Thaum tsom mus rau cov khoom lag luam zoo, lub tuam txhab tau nqis peev nyiaj ntau hauv kev tiv thaiv ib puag ncig. Txhua qhov tshem tawm cov plua plav hauv qhov kev cob qhia yog kev kho mob nruab nrab. kev tiv thaiv ua haujlwm nruj thiab ruaj khov, yog li txhawm rau tsim qhov chaw dav rau kev txhim kho.
Xyoo 2020, lub tuam txhab tau teev tseg raws li txoj haujlwm tsim kho tseem ceeb hauv Hebei P.rovince, thiab tau yeej lub npe zoo xws li Hebei Green Casting Model Enterprise thiab Cov Khoom Zoo Tshaj Plaws tshaj tawm los ntawm Hebei Foundry Association.
Sijhawm Tshaj Tawm: Tsib Hlis-31-2021