hot dip galvanized steel spiral stairs
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- Product description
-
1. galvanized grate stair tread
We manufacture different styles of stair ladders that used in family,industry and construction.
Material: mill steel black and hot dip Galvanizing / and stainless grating
Usage: ladder, flooring walkway, platform ,steel structures, stair tread, well cover, trench cover, sump cover,compound gratings, storage shelves,fences and handrail so on for construction project, oil project, seaport, power plant, water plant, defense project, chemical factory and so on.

2Stair Tread Types: galvanized staircase metal

1)There are four kinds of stair treads T1,T2,T3,T4.
T1 Welded fixing and Without nosing
T2 Bolted fixing and without nosing,easy to installation and teardown.
T3 Welded fixing and with checkered plate nosing, can be skid.
T4 Bolted fxing and with checkered plate nosing, easy be installation,
teardown and can be skid.
2) Material: Mild Steel (Low Carbon Steel) or Stainless Steel
4) Steel grating standards:
A) China: YB/T4001-1998
B) USA: ANSI/NAAMM (MBG531-88)
C) UK: BS4592-1987
D) Australia: AS1657-1988
E) Japan: JJS3. galvanized grate stair tread specificationPitch of Bearing bar
Cross-bar Pitch
Specification of bearing bar load(width×thickness)
32×5
40×5
45×5
50×5
55×5
60×5
30
100
G325/30/100
G405/30/100
G455/30/100
G505/30/100
G555/30/100
G605/30/100
50
G325/30/50
G405/30/50
G455/30/50
G505/30/50
G555/30/50
G605/30/50
40
100
G325/40/100
G405/40/100
G455/40/100
G505/40/100
G555/40/100
G605/40/100
50
G325/40/50
G405/40/50
G455/40/50
G505/40/50
G555/40/50
G605/40/50
60
50
G325/60/50
G405/60/50
G455/60/50
G505/60/50
G555/60/50
G605/60/50
4. galvanized grate stair tread manufacturer process
5.our company review
Hebei Jiuwang Metal Wire Mesh Co.,Ltd.(original Anping County Jintai Metal Mesh Co.,Ltd.).Established in 1992,our company is a manufacturer of large steel structure and steel gratings,integrating development,production and distribution.The company register capital is 10,080,000 Yuan,and take an area of 34,680 square meters.In 2003,we have got the ISO9001:2000 certification by BQR.

our company activity(open business in new year,attend economic meeting,dinning with customers,group tour,116th Canton Fair)

customers visit our factory

galvanized fixing grating clips application






flat bar grating for staircase

serrated bearing bar grating for staircase

grating for staircase package
7.contact us
hot dip galvanized steel spiral stairs
If you need customized products, Contact US !
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