Yuav ua li cas nrog rework ntawm galvanized steel kauj nrog dej?

1. Ua ntej, maj mam txhuam nrog cov ntawv xuab zeb.
2. Thib ob, siv galvanized tshwj xeeb kho xim rau kev kho.
3. Thaum kawg, yog tias cov paj ntaub dawb loj lossis txawm tias xeb liab tau tshwm sim, nws yuav tsum tau khaws thiab rov galvanized, los yog khawb ncaj qha.