Cov txheej txheem ntim mis hmoov yog dab tsi?Raws li thev naus laus zis hloov zuj zus, nws tau dhau los ua yooj yim heev, tsuas yog xav tau cov kauj ruam hauv qab no xwb.Cov txheej txheem ntim cov hmoov nplej: tiav cov kaus poom → tig lub lauj kaub, tshuab thiab ntxuav, sterilizing tshuab → hmoov filling tshuab → saw phaj conveyor siv → tau seamer → c ...
Nyeem ntxiv