... of the Grating: a) Type of bearing bar: 20 x 3 - 100 x 6 b) Pitch of bearing bar: 12.5, 30, 15 ... , 33, 35mm c) Pit Product:GratingFeatures: a) Type of bearing bar: 20 x 3 - 100 x 6b) Pitch of bearing ... .5, 30, 15, 33, 35mmc) Pitch of cross bar: 50 - 100mmd) Material: mild steel or stainless steele) Finish: hot ...