Txoj kev tseem ceeb ntawm kev tiv thaiv kev tiv thaiv hlau yog los hloov cov qauv sab hauv ntawm cov hlau. Piv txwv li, ntxiv chromium thiab npib tsib xee rau cov hlau zoo tib yam los ua stainless hlau. Npog cov hlau nto nrog ib txheej tiv thaiv. Piv txwv li, pleev xim rau, electroplating, los yog tsim ib tug ntom corrosion-resistant oxide zaj duab xis rau ntawm ib tug hlau nto siv tshuaj. Tom qab qhov saum npoo ntawm lub nplhaib hlau yog coated nrog ib txheej hlau tiv thaiv, oxidation kev puas tsuaj ntawm cov hlau txheej tseem yuav cuam tshuam rau corrosion ntawm lub nplhaib hlau thiab tsis tuaj yeem muab kev tiv thaiv tseem ceeb.