Peb lub tuam txhab tsis siv neeg ntim zaj duab xisua tausiv nyob rau hauv ntau txoj kab rov qab sealing packing tshuab, ntsug daim ntawv sau foob tshuab (VFFS), Horizontakl daim ntawv sau foob tshuab (HFFS) thiab hais txog.Nws's nyob ntawm tus neeg siv khoom's xav tau.