... , tank grating , pavement grating , Steel Grating,Bar Grating,Ditch Covert, Stair Tread,pavement gratingWe produce three ... Grating, Serrated Style Steel Grating and I Bar Type Steel Grating. They are widely used ... shapes per client's requirements.1) Bearing Bar (Load Bar) Specifications (mm): The specification of plain ... 11-w-4), (8-w-4) and so on.3) Cross Bar Pitch (center to center): 38, 50, 76, ...