Cov kab galvanizing tuaj yeem tswj cov hlau tsis tshua muaj hlau nrog cov khoom siv hluav taws xob ntxiv los yog cov pa roj carbon siab hlau tsis muaj kev kho cua sov.Peb muaj ob qho tib si PAD so system thiab puv-auto N2 so system los tsim cov txheej txheem sib txawv hnyav galvanized hlau cov khoom.