... Advantages of steel grid plank: light weight, strong intensity, big load capacity, transmission and aeration, anti-skidSteel product standard: ... ; of which 50 and 100mm arerecommended3) Advantages of steel grid planks: light weight, strong intensity, big load ... A36, A1011, A569, Q235, S275JR, SS304, Mild steel & Low carbon steel, etc5Surface TreatmentBlack, self colour, hot dip galvanized, painted, ...