... 4.Chaofeng Metal products Serrated Steel Grating is combined with Serrated flat steels and bars which are welded by ... galvanizing, cold galvanizing, painting, or ,do not dealSerrated Steel Grating Superioritya. Material savings: under the same load ... materials, labor, the provincial period, free cleaning and maintenance.Serrated Steel Grating applications,Widely used in the platforms, walkways, ...