4" mesh graing is press lock graing with bearing bar pitch 4".
Steel-grating our main products, can be nature, painted, and galvanized. We have 3 running lines which can make sure the capacity per year reach 30, 000 tons.
Jiuwang grating has exported to more than 20 countries. Choose Jiuwang grating is your right decision!

The bearing bar
Comes in the form of a plain surface flat bar, commonly used for platforms, trench Gratings, and stair treads.

Standard Description:
No Item Description
1 Bearing bar 25x3, 25x4, 30x3, 30x4, 30x5, 32x5, 40x5, 50x5, ...75x10mm
2 Bear bar pitch 12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 34.3, 35, 40, 41, 60mm. US standard: 1"x3/16", 1 1/4"x3/16", 1 1/2"x3/16", 1"x 1/4", 1 1/4"x 1/4", 1 1/2"x 1/4" etc.
3 Cross bar pitch 38, 50, 76, 100, 101.6mm
4 Material Q235, A36, SS304
5 Surface treatment Black, hot dipped galvanizing, paint
6 Standard China: YB/T 4001.1-2007
USA: ANSI/NAAMM(MBG531-88)
UK: BS4592-1987
Australia: AS1657-1985