Pressed corrugated steel ntawv (ru tsev ntawv) yog hais txog cov ntawv hlau uas tsim los ntawm kev nias txias los yog txias dov. Cov ntawv hlau yog ua los ntawm cov ntawv hlau xim, galvanized steel ntawv, stainless hlau ntawv, aluminium ntawv, anticorrosive steel ntawv los yog lwm yam nyias steel ntawv.
Cov ntawv hlau profiled muaj cov yam ntxwv ntawm lub teeb yuag, lub zog siab, tus nqi qis, kev ua haujlwm zoo seismic, kev tsim kho sai thiab zoo nkauj tsos.
Cov hlau corrugated yog cov khoom siv hauv tsev zoo, feem ntau yog siv rau lub tsev vov tsev, phab ntsa tsev, guardrail, pem teb thiab lwm lub tsev, xws li tshav dav hlau terminal, railway chaw nres tsheb, chaw ntau pob, concert hall, grand theatre, thiab lwm yam.