PPGI ndi mbale TACHIMATA zitsulo (galvanized, aluminiyamu zinki, faifi tambala-yokutidwa, etc.) pamwamba mankhwala mankhwala (degreasing, phosphating, chromic acid passivation), ndiye TACHIMATA ndi utoto, ndiyeno kuphika mankhwala.

Ubwino: ili ndi mphamvu zamakina azitsulo zachitsulo komanso zosavuta kuumba, ndipo zinthu zakuthupi zimakhala ndi zokongoletsera zabwino komanso zosakanizidwa ndi dzimbiri. Kupaka kumamatira mwamphamvu ndipo kumatha kusunga mtundu wamtundu kwa nthawi yayitali.

Ntchito: amagwiritsidwa ntchito kwambiri pomanga, zida zapanyumbamipando, malo aboma ndi zoyendera ndi zina.