1. High strength, light structure 2.Beautiful appearance, durable 3.High Strength 4.Various Types Plain Galvanized Steel Grating1,Bearing Bar pitch:12.5--100mm,we recommended 25 30 40 mm2,Cross bar pitch :20--200mm,we recommended 50 60 76 100 mm 3'Sign of the shape of bearing bar F plain type S Serrated Type I I-shape type4' Sign of surface treatment (1)Hot -dip galvanizin (2)Plainted (3) ...