... Type Steel GratingApplication: flooring walkway, platform and steel structures, stair tread, well cover, trench cover, compound gratings, storage shelves, ladder ... project, seaport, power plant, water plant, defense project, chemical factory and so on.Steel grating standards:A) China: YB ... This grating is featured well by heavy-duty,well resistance of strong impact on surfaceUsage:This kind of steel ...