... ,galvanized steel 2.bearing bar thickness:3mm or 5mm 3.Pitch of Bearing bar:30mm,40mm,60 steel bar ... mesh seriesSeries distanceTraverse line distanceLoad flat specifications (wide×thick)20×325×332×340×320×525×5130100G203/30/100G253/30/100G323 ... Steel Material:Low Carbon Steel, Mild Steel, Grating Size:3'x20', 3'x24', 3'x30', 1000x1000, 1000x5800, 1000x6000mmGrating Material StandardASTM A36, A1011, ...