PPGI yog cov coated steel phaj (galvanized, aluminized zinc, npib tsib xee-plated, thiab lwm yam) degreasing tshuaj kho (degreasing, phosphating, chromic acid passivation), ces coated nrog cov xim, thiab ces ci khoom.

Qhov zoo: nws muaj ob qho tib si lub zog ntawm cov phaj steel thiab yooj yim rau kev ua haujlwm, thiab cov khoom siv organic muaj cov khoom zoo nkauj thiab corrosion kuj.Cov txheej muaj zog adhesion thiab tuaj yeem khaws cov xim tshiab rau lub sijhawm ntev.

Daim ntawv thov: dav siv hauv kev tsim kho, khoom siv hauv tsevrooj tog, pej xeem cov chaw thiab kev thauj mus los thiab lwm yam kev lag luam.