Product Specifications
| Prod Model: |
255/30/100 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Type: |
T1, Welded Fixing |
| Surface Treatment: |
Hot DIP Galvanized/Painted/Untreated |
| Size: |
255/30/100 or OEM |
Product Description
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.
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: JJS
| Item | Recommended maximum stair treads length (mm) |
| Bearing bar dimension mm | 25*3 | 25*5 | 32*5 |
| Bearing bar's pitch at 30 mm | 550 | 900 | 1300 |
| Bearing bar's pitch at 40 mm | 450 | 750 | 1200 |
| Item | Recommended stair treads width (mm) |
T1/T2/T3/T4
Bearing bar pitch at 30mm | 95 | 125 | 155 | 185 | 215 | 245 | 275 |
T1/T2
Bearing bar pitch at 40mm
T3/T4 |
| 125 | 165 |
| 205 | 245 | 285 |
| 115 | 155 |
| 195 | 235 | 275 |
| Fixing hole center(mm) | 45 | 75 | 100 | 150 |
Hebei Jiuwang Metal Mesh Manufacture Co., Ltd (BILLION China INTERNATIONAL GROUP) covering 10000 m2 area, , is one of the biggest manufacturer and exporter of Flooring steel grating and stanchions (or rails)in north of China Started from 1992, In Sep. Of 2003, we successfully passed ISO9001: 2000 international quality management system certificate.
Steel gratings are widely used in petroleum, chemical, transport, power, mine, communication, civil construction, rubber, breeding and other industries. 5 production lines makes more than 2000 Tons flooring grating every year, Our Hot-DIP-Galvanized treatment workshop can satisfy 6-10 meters black steel grating.
As for the fine technician of steel grating, grating fence, trench over and stair treads, and Hot-DIP galvanized surface treat, we built good friendship with customers from USA, Europe, Middle East, Japan, Korean, Australia and Canada.
As customer request, we can also offer field fence (grassland fence), T post and Y post for Middle East, America and Australian countries application
We would like to establish good business relationship with our old and new customers on the basis of sincere cooperation and mutual benefit.
