... grating 3. Easy installation & saving work ti 1.Comprehensive type and broadest range in dimension.1.1 Material Q235 , or other ... .8, 70, 75, 80, 100, 101.6, 102……The sizes and dimension is not limited to above.1.4 Grating type ... type, serrated type, serrated I type; cross bar: round type and square twisted type. www.cnstrongstar.com Anping Steel Grating(China)