... , A569, Q235Grating ProductsSteel Grating, plain and serrated grating, trench grate, stair treadGrating Surface:Hot dip Galvanized, PaintingGrating Specification:19-w-4 ... and allGrating Application:steel platform, flooring and walkway, trench cover, stair treadPayment & Shipping Terms: Price:FOB USD 4~10 / Square MeterMinimum ...