Steel hlau qws yog ib tug ntev, cylindrical hlau khoom ua los ntawm steel.Nws feem ntau yog tsim los ntawm cov txheej txheem kub dov, qhov twg steel billets yog rhuab thiab dhau los ntawm ib tug series ntawm dov sawv los txo lawv txoj kab uas hla thiab nce lawv ntev.Lub resulting hlau pas nrig muaj ib tug ncig cross-section thiab ib tug du nto.
Hlau hlau pas nrig feem ntau yog siv los ua raw khoom rau ntau yam kev siv.Nws yog feem ntau siv rau hauv kev tsim khoom ntawm ntau yam khoom siv hlau, xws li cov ntsia hlau, ntsia hlau, hlau mesh, laj kab, thiab cov xaim hluav taws xob.Raws li cov kev xav tau tshwj xeeb, cov pas nrig hlau tuaj yeem ua tiav los ntawm kev kos duab, annealing, los yog txheej kom ua tiav cov khoom xav tau, nto tiav, thiab corrosion kuj.