Komanso, opanga nkhungu angathenso kugawidwa mu zisamere pachakudya cha hardware malinga ndi zinthu zosiyanasiyana nkhungu kupanga: kuphatikizapo chidindo akamwalira, forging amafa, extrusion kufa, extrusion kufa, kufa-kuponya kufa, forging amafa, etc.; Mafa osagwiritsa ntchito zitsulo amagawidwa m'magulu awiri: pulasitiki ndi zitsulo zopanda zitsulo. Malingana ndi zinthu zosiyanasiyana za nkhungu yokha, nkhunguyo imatha kugawidwa kukhala: mchenga wa mchenga, nkhungu yachitsulo, nkhungu ya vacuum, nkhungu ya parafini ndi zina zotero. Pakati pawo, ndi chitukuko chofulumira cha mapulasitiki a polima, nkhungu zapulasitiki zimagwirizana kwambiri ndi miyoyo ya anthu. Zoumba zapulasitiki zimatha kugawidwa m'magulu awiri: jekeseni akamaumba jekeseni, akamaumba extrusion zisamere pachakudya, gasi-anathandiza akamaumba, ndi zina zotero.