... high techonology&rich experience quick shipmnet ISO9001 bar grating well cover(grate cover deck) Packaging Detail:seaworthy,by ... GratingApplication: flooring walkway, platform and steel structures, stair tread, well cover, trench cover, compound gratings, storage shelves, ladder, ... are available. Feature:This grating is featured well by heavy-duty,well resistance of strong impact on surfaceUsage:This ...