Izihlungi zesikhwama se-Carbon steel, obhasikidi bezihlungi zensimbi engenasici ngaphakathi, ezishibhile, ezisetshenziswa kakhulu ezimbonini zikawoyela, njll.
Isihlungi sesikhwama sohlobo lokungena phezulu sisebenzisa indlela yokuhlunga esezingeni eliphezulu kakhulu yokungena okuphezulu kanye nokukhipha okuncane kwesihlungi sesikhwama ukwenza uketshezi oluzohlungwa lugeleze lusuka endaweni ephakeme luye endaweni ephansi. Isikhwama sokuhlunga asithintwa isiphithiphithi, esithuthukisa ukusebenza kahle kokuhlunga nempilo yesevisi yesikhwama sokuhlunga. Indawo yokuhlunga imvamisa ingu-0.5㎡.