Prepainted galvanized steel ntawv hauv kauj yog cov khoom siv hlau uas siv tau zoo heev corrosion kuj thiab zoo tsim cov khoom, yog li nws yog dav siv nyob rau hauv kev tsim kho, tsheb thauj mus los, electronics, thiab lwm yam. DX51D yog ib tug specification ntawm galvanized sheet coil, uas "D" txhais tau tias. galvanized ntawv, "X" qhia tias lub substrate yog kub dov ntawv, "51": serial tooj, tsis muaj lub ntsiab lus tshwj xeeb, sawv cev ntawm kev siv.