Yuav Ua Li Cas Yog Hlau Yeeb Galvanized

Galvanized hlau ua li cas? ... Thaum cov yeeb nkab steel raug coated nrog tiv thaiv txheej ntawm zinc, tom qab ntawd nws dhau los ua galvanized steel yeeb nkab. Qhov no yog ua tiav los ntawm kev siv molten zinc, lossis zinc-nplua nuj electrolyte tov. Qhov kawg tshwm sim feem ntau tseem yog hlau, tsuas yog nrog cov zinc npog.