... including plain style steel grating, serrated style grating and I Bar steel grating. They are widely used in steel structure ... steel grating or according to clients request. Description:1) Bearing Bar (Load Bar) Specifications (mm):The specification of plain type and serrated ... 30, 40, 60mm are recommended, America standard is available. 3) Cross Bar Pitch (center to center): 30, 38, 50, 76, 100mm etc ...