1. Makampani a Chakudya: Zowumitsa zowumitsa muutsi zimagwiritsidwa ntchito kwambiri kuumitsa zipatso, ndiwo zamasamba, nyama, nsomba zam'nyanja, ndi zakudya zina. Ukadaulo woumitsa muumi wa vacuum umateteza mtundu, kapangidwe kake, ndi zakudya zomwe zili m'zakudya, umatalikitsa moyo wake wa alumali, ndikuwonjezera phindu lake.
2. Makampani Opanga Mankhwala: Mankhwala ali ndi zofunikira kwambiri pakuwumitsa. Zowumitsa zowumitsa zowumitsa zimatha kukwaniritsa zofunika kuti zisatenthedwe, kusatenthedwa, ndi kuthira okosijeni-ntchito yaulere panthawi yowumitsa mankhwala, kuwonetsetsa kuti mankhwalawo ali abwino komanso osakhazikika.
3. Makampani Opangira Ma Chemical: Zowumitsa zowumitsa zowumitsa zimagwiritsidwanso ntchito poyanika zinthu zopangidwa ndi mankhwala, zopangira, ndi zinthu za polima. Kugwiritsa ntchito ukadaulo uwu m'makampani opanga mankhwala kumathandizira kukonza zinthu, kuchepetsa kugwiritsa ntchito mphamvu, komanso kuchepetsa kuwononga chilengedwe.
