Corrugated vs. galvanized hlau: dab tsi yog qhov txawv? Tshawb nrhiav seb cov qauv zoo li cas thiab cov zinc coatings ua ke kom ruaj khov, xeb-pov thawj vov tsev.
Tshawb nrhiav yuav ua li cas alloy, txheej, thiab ib puag ncig dictate aluminium coil lifespan los ntawm 20 txog 50+ xyoo. Tiv thaiv kom tsis txhob raug nqi ntau thiab ua kom ntev ntev.