... and dimention 2.applicable steel equipment 3.excellent quality of steel grating 4.reasonable price 1) Bearing bar ... 50,100mm are recommended.4) The Maximun length of black panel is 7350mm.5) Materials: mild steel or stainless ... , 5mmMaterialQ235,SS304,SS316Surface treatmentBlack , hot dip galvanizing,paintFields of ApplicationPlatforms ,sidwalks,filter grates,ventilation grates,driling stages, ladder ...