Umbhobho wesikwere ligama lombhobho wesikwere kunye nombhobho wexande, oko kukuthi, umbhobho wentsimbi kunye nobude obulinganayo kunye nokungalingani.Yenziwe ngentsimbi yentsimbi eqengqelekayo emva konyango lwenkqubo.Ngokuqhelekileyo, intsimbi ye-strip ikhutshwe, ihlanjululwe, ihlanjululwe kwaye ifakwe kwi-welded ukuze yenze umbhobho ojikelezayo, emva koko ifakwe kumbhobho wesikwere, kwaye inqunyulwe ubude obufunekayo.Eyaziwa nangokuthi isikwere kunye noxande olunentsimbi yecandelo elibandayo, elibizwa ngokuba yi-square tube kunye ne-rectangular tube, amagama ekhowudi ngu-F kunye no-J ngokulandelanayo.