Types of steel grating 

steel grating is basically consist of bearing bar and cross bar by automatic press welding machinie as following chart .

Product details 

Product name        Steel grating 

Grating Style          Plain type   Serrated type    I type      serrated I type   

Surface Treatment Black/Untreated (U)Hot dip Galvanizinig (G) Paiting(P)

 Usage                   industry of Power plant, Oil Refineries,Petrochemistry, Chemical Plant, Water and Waste treatment plant, Ship-building, offshore
projects and civil construction (like roads, park) ., etc.

Bearing Bar  (width*thickness)  

25*3mm,25*4mm,25*5mm,30*3mm,30*4mm,30*5mm,32*3mm,32*5mm,40*3mm,40*4mm,40*5mm,50*3mm,50*4mm,50*5mm Etc

Bearing bar pitch (mm)   12.5, 15, 20, 25, 30, 34.3, 35.3, 40,41.25, 50, 60...(30, 40,50 mm are recommended ),also can do the size as customer's request 

Cross bar pitch (mm)    38.1, 50, 76.2, 100, 101.6 . Etc.(30, 50, 100 ,150 mm are recommended ),also can do the size as customer's request 

Material                  Mild steelQ235, Stainless steel