Bearing bar sizes

Thickness≥3mm, height≥20mm

20*3,20*5,25*3,25*5,32*3,40*3mm......

Bearing bar pitch(mm)

30,30.6,32.5,34,34.8,35.3,40,60mm......

Cross bar pitch(mm)

38.1,50,50.8,70,75,80,100.mm.....

1.Grating Types:

      W--welded steel grating   L-- pressure-locked   C-- socket-welding

2.Bearing bar Pitches:

      15-30, 40, 60, 80, 90 mm etc. with 30, 40 mm recommended.

3.Cross bar Pitches:

      50, 100mm are recommended.

4.Surface treatment:

      G - galvanized

      P - painted

      U - untreated

5.Grating standard:

        China:   YB/T4001.1-2007(YB/T4001.1-1998)

        Britain:   BS4592-1:1995

        US:      ANSI/NAAMM(MBG531-93)

        Austrilia:  AS1657-1992

6.Marks:

        Example: G 325/30/100    G255/40/50