Place of Origin：
Stair Part Material：
Galvanized steel stiar tread grating
steel stair tread grating is packed in container
Hot dip gavanized steel stair tread,non-galvanized
Low carbon steel, mild steel
Steel platform, grating flooring and walkway, platform
ASTM A36 or Q235, Low carbon steel, Mild steel
steel grating, GI grating, serrated grating, drain cover, stair tread
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
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.
Twisted Cross Bar Pitch
38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc
ASTM A36, A1011, A569, Q235, S275JR, SS304, SS400, Mild steel & Low carbon steel, etc
Black, self colour, hot dip galvanized, painted, spray coating
Plain / Smooth, Serrated /teeth, I bar, serrated I bar
China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88), UK: BS4592-1987, Australia: AS1657-1985, Germany: DIN24537-1-2006, Japan: JIS
1) Grating can load withstand repeat load impacts and have outstanding durability;
2) Because of big opening area, gratings have good drainage function, and can be kept hygienic;
3) Easy to install and to clean;
4) Having corrosion resistance after galvanizing, so it is economical;
5) With a wide variety and types, can select according to different occasions.
SPECIFICATIONS FOR HOT DIP GALVANIZED STEEL OUTDOOR COMPOSITE STAIR TREAD
Bearing bar p
25x3, 25x5, 32x5mm etc.
Cross bar pitch
30, 38, 50, 76, 100mm etc.
Cross bar dimension
5x5, 6x6, 8x8mm etc.
Sign of the shape of bearing bars
can be omitted in the symbol
Sign of surface treatment
can be omitted
According to the products' size
According to the products' weight
Packed in pallets or according to the customers' requirement.