The width of the single passageway of the special steel grating for railway shall not be less than 600 mm. When passages for steel gratings are often passed or inserted by more than one person, the width should be added to 1200 mm.

If the steel grating passageway is used as an evacuation route, its width should satisfy the requirements of specific regulations. In the absence of specific regulations, the width shall not be less than l200mm.

Common Specifications for steel grating
1. Flat steel and cross bar are made by Q235 of GB/T700. According to the agreement between the supplier and the demander, other materials are also available.
2. Hot-rolled flat steel or hot-rolled or cold-rolled strips with longitudinal shear are used for flat steel.
3. Compliance table YB/T4001 for allowable error of flat steel scale. Rule 1-2007.
4. Hot-rolled flat steel or hot-rolled or cold-rolled steel strips with longitudinal shear and punching are used for toothed flat steel. The tooth type scale should not be less than 5 teeth per 100mm.
5. Section dimension and moment of inertia of I-shaped flat steel.

Our company is steel grating manufacturer integrating production and sales. It is located in Anping, Hebei Province, known as the country of wire mesh. Its main products are steel grating, hot-dipped galvanized steel grating, stainless steel grating, platform steel grating, special-shaped steel grating, toothed steel ggrating, heavy-duty steel grating, press-welded steel grating, composite pattern steel grating, steel grating cover, stair pedals. Secondly, we produce and sell slope protection net, fence net, chain link fence and other protection products.