The best drainage: Leakage area of 83.3 percent, more than twice of cast iron products.
Hot-DIP galvanized treatment: Good rust-proof property, maintenance-free replacement.
Anti-theft design: The cover and the frame is joint with hinge offering security, safety and open convenience.
Savings investments: Large-span. Less lost for heavy load compared with cast iron products. Cost can be saved for the risk of being stolen or crushing one if cast iron is uses.
Surface Treatment:
Steel grating untreated: Allowing quicker delivery to customers whom fabricate and galvanize the grating on their own.
Galvanized: Hot DIP Galvanizing can give a hygienic and clean maintenance free bright finish.
New bridge steel plate has been widely used in all walks of life both at home and abroad, mainly used for industrial platform, staircase pedal, banister, channel floor, railway bridge service, high tower platform, the drain cover, manhole covers, road barrier, three-dimensional parking lot, organs, schools, factories, enterprises and institutions, the stadium fence, garden villa, also can be used as a residence outside the window, balcony guardrail, highway, rail barrier, etc.
| Specifications of steel gratings |
| No |
Item |
Description |
| 1 |
Bearing bar |
20x5, 25x3, 25x4, 25x5, 30x3, 30x4, 30x5, 32x3, 32x5, 40x5, 50^ 75x8mm, etc. |
| 2 |
Bearing bar pitch |
25, 30, 30.16, 32.5, 34.3, 40, 50, 60, 62, 65mm, etc. |
| 3 |
Cross bar |
5x5, 6x6, 8x8mm (twisted bar or round bar) |
| 4 |
Cross bar pitch |
40, 50, 60, 65, 76, 100, 101.6, 120, 130mm or as customers' requirement. |
| 5 |
Surface treatment |
Untreated, Hot dip galvanized, Cold dip galvanized, Painted, Powder coated, or as customers' requirement. |
| 6 |
Flat bar type |
Plain, Serrated (tooth-like), I bar (I section) |
| 7 |
Material standard |
Low carbon steel (CN: Q235, US: A36, UK: 43A) |
| 8 |
Galvanization standard |
CN: GB/T13912, US: ASTM (A123), UK: BS729 |
| 9 |
Steel grating standards |
A. China: YB/T4001-1998 |
| B. USA: ANSI/NAAMM (MBG 531-88) |
| C. UK: BS4592-1987 |
| D. Australia: AS1657-1988 |
| E: Japan: JJS |
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