... stair treads etc. Detailed Selling Lead Description steel grate, drainage grating is a NEW building material, it' widely used in ... ,stadium,port,walkway,platform etc.Our main products are steel grating floor, trench cover, well cover, stair treads, fence etc. 1) ... ) Surface Treatment: Untreated, Painting or Hot dip GalvanizingPlain steel grating is one of the most widely used steel gratings. The ...