... .5-2.5m Q235 steel grating platform hot sale Material: Mild (low carbon) steel or stainless steel Style:plain,serrated,I- ... shape,serrated-I shapeProcess: Steel grating ... A36, A1011, A569, Q235, S275JR, SS304, Mild steel & Low carbon steel, etc5Surface TreatmentBlack, self color, hot dip galvanized, painted, ...