... wharf, airport, parking, highway, railway, industrial engineering and so on.Type of bearing barW--welded steel grating L-- pressure-locked C ... -93)Austrilia: AS1657-1992Marks:Example: G 325/30/100 WFG Type:A variety of specifications can meet all demands of shapes, sizes ... grating and very economical. This kind of gratings fit for fixed platforms, walkway, and stair treads and British, German,French ...