China Hot Dipped Galvanized Steel Grating Prices

:
Flooring, catwalk, mezzanines/decking, stair tread, fencing, ramp, dock, trench cover, drainage pit cover, maintenance platform, pedestrian/crowded pedestrian, factory, workshop, motor rooms, trolley channel, heavy loading area, boiler equipment and heavy equipment area, etc
The allowed deviation of length is +0/-5mm, while the allowed deviation of width is +/-5 mm.
The non-perpendicularity of bearing bar is allowed no more than 10% of width of bearing bar.
Cross bar surface should not surpass bearing bar surface 1mm, beginning & end of cross bar should not surpass the end surfaces of two sides of grating 2mm

No.

Item
Description 1
Bearing Bar

25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc
I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc
US standard: 1''x3/16'', 1 1/4''x3/16'', 1 1/2''x3/16'', 1''x1/4'', 1 1/4''x1/4'', 1 1/2''x1/4'', 1''x1/8'', 1 1/4''x1/8'', 1 1/2''x1/8'' etc
2
Bearing Bar Pitch

12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc
US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc
3
Twisted Cross Bar Pitch
38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc 4
Material Grade

ASTM A36, A1011, A569, Q235, S275JR, SS304, SS400,
Mild steel & Low carbon steel, etc
5
Surface Treatment
Black, self colour, hot dip galvanized, painted, spray coating 6
Grating Style

Plain / Smooth, Serrated /teeth, I bar, serrated I bar
7
Standard

China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88),
UK: BS4592-1987, Australia: AS1657-1985,
Germany: DIN24537-1-2006, Japan: JIS