Ufa wachitsulo chophimba
Zomwezi zimachitika mu ufa wachitsulo ufa, monga mu aluminiyamu ufa woumba.
Zogulitsa:Jz-az molecular sive
Polyirethane Dyhydration
Karata yanchito
Kutumiza Mafunso
Vuto lililonse, chonde khalani omasuka kulumikizana nafe. Yankhani mkati mwa maola 24.