... steel bar grating weight hot sale and hot scheduling Material: Mild (low carbon) steel or stainless steel ... A1011, A569, Q235, S275JR, SS304, Mild steel & Low carbon steel, etc5Surface TreatmentBlack, self color, hot dip galvanized, ... painted, spray coating 6Grating StylePlain / Smooth, Serrated /teeth, I bar, serrated I bar ...