... cold rolled/hot dip galvanized / electrolytic galvanizedSurface treatment Chromated, unoiled, bright, regular spangle, tension ... galvanized SURFACETREATMENTMini/regular/big/zero spangle,Chromate treatment /chromate-free treatment /untreated unoile/oiled,Tension levellert skin ... ,colorMini/regular/big/zero spangle,Chromate treatment /chromate-free treatment /untreated unoile/oiled,Tension levellert skin ...