... stair treads,Ditch cover , tank grating , pavement grating , Steel Grating,Bar Grating,Ditch Covert, Stair Tread,pavement gratingWe produce three kinds ... Style Steel Grating, Serrated Style Steel Grating and I Bar Type Steel Grating. They are widely used in steel ... and in customized shapes per client's requirements.1) Bearing Bar (Load Bar) Specifications (mm): The specification of plain type and ...