Steel grating type: welded steel grating and press bar grating.
Bearing bar type: flat bar and I bar.
Bearing bar pitch: 20 mm, 30 mm or 40 mm.
Cross bar pitch: 50 mm or 100 mm.
Nosing type: checker plate, strip plate and hole plate.
Surface treatment: galvanized or anti-corrosion painted.
Bearing load: 1.5 kN.