... like.4.Surface treatment: powder coating, painted, HDG,electro plated etc.5.Function : support6.Certification: SGS,ISO 9001:20087 ... s requirementsurface treatmenthot dip galvanized, powder coated, painted ,electro plated.advantagestop quality,competitive price, timely delivery,good service,standard ... % in advance T/T,L/CHS code73084000 Chinese Silver painted H-frame steel scaffolding