... .Pitch of Bearing bar:30mm,40mm,60 steel bar grating it is flat steel bar in accordance with a certain spacing ... , ladders, fence, fence, etc. Specification of steel grid mesh seriesSeries distanceTraverse line distanceLoad flat specifications (wide×thick)20×325×332×340 ... T4001, ANSI/NAAMM-MBG531, BS4592, AS1657, JS3101Grating Steel Material:Low Carbon Steel, Mild Steel, Grating Size:3'x20', 3'x24', 3' ...