Yintoni umahluko phakathi kombhobho wesikwere ogqunyiweyo kunye nombhobho oqhelekileyo wesikwere? Ngaba kukho umahluko ekumelaneni nokugqwala? Ngaba ububanzi bokusetyenziswa buyafana?

Kukho umahluko ophambili phakathi kweetyhubhu zesikwere ezirhangqiweyo kunye neetyhubhu zesikwere eziqhelekileyo:
**Ukumelana nokugqwala**:
-Umbhobho wesikwere ogqunyiweyoinokumelana okuhle nokugqwala. Ngokusebenzisa unyango lwe-galvanized, umaleko we-zinc wenziwa phezu komphezulu wetyhubhu yesikwere, onokumelana ngempumelelo nokukhukuliseka kwendalo yangaphandle, njengokufuma, iigesi ezigqwalisayo, njl.njl., kwaye wandise ubomi benkonzo.
- Eqhelekileyoiityhubhu zesikwerezichaphazeleka lula kukugqwala, kwaye zinokrwada kwaye zonakalise ngokukhawuleza kwiindawo ezithile ezinzima.

**Inkangeleko**:
-Ityhubhu yentsimbi yesikwere egalelweyoinomaleko oqinisiweyo phezu komphezulu, odla ngokubonisa umhlophe ocwebezelayo.
- Ityhubhu yesikwere eqhelekileyo ngumbala wendalo wentsimbi.

**Sebenzisa**:
- Ityhubhu yesikwere egalelwe ngesinyithiisetyenziswa rhoqo kwiimeko apho kufuneka ukhuseleko oluphezulu lokugqwala, njengolwakhiwo lwangaphandle lwesakhiwo, imibhobho yamanzi njalo njalo.
- Iipayipi eziqhelekileyo zesikwere nazo zisetyenziswa kakhulu, kodwa zisenokungafaneleki kwezinye iindawo ezinobungozi ngakumbi.

**Ixabiso**:
- Ngenxa yeendleko zenkqubo yokugaya i-galvanizing, iityhubhu zesikwere ze-galvanizing zihlala zibiza kakhulu kuneetyhubhu zesikwere eziqhelekileyo.
Umzekelo, xa kusakhiwa iishelufu zesinyithi zangaphandle, ukuba imeko-bume inomswakama okanye ithambekele ekuchukumiseni izinto ezirhabaxa, ukusetyenziswa kweetyhubhu zesikwere ezirhabaxa kuya kuba nokuthenjwa ngakumbi kwaye kuhlale ixesha elide; ngelixa kwezinye izakhiwo zangaphakathi ezingadingi ukhuseleko oluphezulu lokugqwala, iityhubhu zesikwere eziqhelekileyo zinokwanela ukuhlangabezana neemfuno kwaye zinokonga iindleko.