Comparison with checkered plate, steel gratings has the following advantages:

Light weight, high strength, great load-bearing capacity, beinq economical of materials, venfilation and light admission, modern fashion and non-slip and safe, easy cleaning and installation, being sturdy and durable,etc.

Steel grating are widely used in:

Electric power plants, chemical plants, oil refinery, iron and steel works, paper mill, machine building factories, cement mills, municipal engineering, sewage treatment, medicine plants and foodstuff factories.