... steel 2.bearing bar thickness:3mm or 5mm 3.Pitch of Bearing bar:30mm,40mm,60 steel ... /50G605/30/50240100G325/40/100G405/40/100G455/40/100G505/40/100G555/40/100G605/40/10050G325/40/50G405/40/50G455/40/50G505/40/50G555/40/50G605/40/5036050G325/60/50G405 ... Material:Low Carbon Steel, Mild Steel, Grating Size:3'x20', 3'x24', 3'x30', 1000x1000, 1000x5800, 1000x6000mmGrating Material StandardASTM A36, ...