... 40mm 5.Used in flooring,walkway Galvanized steel grating The plain galvanized steel grating commonly used on bridge, ... stainless steel.6).Treatment of surface: untreated or galvanized.7).US standard is also in our production ... 101.6Thickness(mm)3mm , 5mmMaterialQ235,SS304,SS316Surface treatmentBlack , hot dip galvanizing,paintFields of ApplicationPlatforms ,sidwalks,filter grates,ventilation grates, ...