Lub qhov rooj hluav taws kub hlau yog ua los ntawm cov khoom zoo siab stainless hlau daim hlau – kub-dip galvanized txias dov tuab steel daim hlau ntawm ob sab. Nws muaj cov yam ntxwv ntawm kev tiv thaiv corrosion, deformation kuj, thiab lwm yam, thiab tshwj xeeb tshaj yog haum rau cov kev xav tau ntawm siab toughness thiab siab kev nyab xeeb ntawm qhov rooj hluav taws.